diff --git a/src/cli/file-info.js b/src/cli/file-info.js
index 91d8381f1..a84bf7ea0 100644
--- a/src/cli/file-info.js
+++ b/src/cli/file-info.js
@@ -18,7 +18,9 @@ async function logFileInfoOrDie(context) {
     resolveConfig: config !== false,
   });
 
-  printToScreen(await format(stringify(fileInfo), { parser: "json" }));
+  const result = await format(stringify(fileInfo), { parser: "json" });
+
+  printToScreen(result.trim());
 }
 
 export default logFileInfoOrDie;
diff --git a/src/cli/print-support-info.js b/src/cli/print-support-info.js
index cf4672c29..5dc91d766 100644
--- a/src/cli/print-support-info.js
+++ b/src/cli/print-support-info.js
@@ -14,7 +14,9 @@ async function printSupportInfo() {
     ),
   };
 
-  printToScreen(await format(stringify(supportInfo), { parser: "json" }));
+  const result = await format(stringify(supportInfo), { parser: "json" });
+
+  printToScreen(result.trim());
 }
 
 export default printSupportInfo;
diff --git a/tests/integration/__tests__/__snapshots__/file-info.js.snap b/tests/integration/__tests__/__snapshots__/file-info.js.snap
index 12a9e3537..998a69e31 100644
--- a/tests/integration/__tests__/__snapshots__/file-info.js.snap
+++ b/tests/integration/__tests__/__snapshots__/file-info.js.snap
@@ -2,113 +2,74 @@
 
 exports[`extracts file-info for a file in not_node_modules (stderr) 1`] = `""`;
 
-exports[`extracts file-info for a file in not_node_modules (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`extracts file-info for a file in not_node_modules (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`extracts file-info for a file in not_node_modules (write) 1`] = `[]`;
 
 exports[`extracts file-info for a js file (stderr) 1`] = `""`;
 
-exports[`extracts file-info for a js file (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`extracts file-info for a js file (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`extracts file-info for a js file (write) 1`] = `[]`;
 
 exports[`extracts file-info for a known markdown file with no extension (stderr) 1`] = `""`;
 
-exports[`extracts file-info for a known markdown file with no extension (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "markdown" }
-"
-`;
+exports[`extracts file-info for a known markdown file with no extension (stdout) 1`] = `"{ "ignored": false, "inferredParser": "markdown" }"`;
 
 exports[`extracts file-info for a known markdown file with no extension (write) 1`] = `[]`;
 
 exports[`extracts file-info for a markdown file (stderr) 1`] = `""`;
 
-exports[`extracts file-info for a markdown file (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "markdown" }
-"
-`;
+exports[`extracts file-info for a markdown file (stdout) 1`] = `"{ "ignored": false, "inferredParser": "markdown" }"`;
 
 exports[`extracts file-info for a markdown file (write) 1`] = `[]`;
 
 exports[`extracts file-info with ignored=false for a file in node_modules when --with-node-modules provided (stderr) 1`] = `""`;
 
-exports[`extracts file-info with ignored=false for a file in node_modules when --with-node-modules provided (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`extracts file-info with ignored=false for a file in node_modules when --with-node-modules provided (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`extracts file-info with ignored=false for a file in node_modules when --with-node-modules provided (write) 1`] = `[]`;
 
 exports[`extracts file-info with ignored=true for a file in .prettierignore (stderr) 1`] = `""`;
 
-exports[`extracts file-info with ignored=true for a file in .prettierignore (stdout) 1`] = `
-"{ "ignored": true, "inferredParser": null }
-"
-`;
+exports[`extracts file-info with ignored=true for a file in .prettierignore (stdout) 1`] = `"{ "ignored": true, "inferredParser": null }"`;
 
 exports[`extracts file-info with ignored=true for a file in .prettierignore (write) 1`] = `[]`;
 
 exports[`extracts file-info with ignored=true for a file in a hand-picked ignore file (stderr) 1`] = `""`;
 
-exports[`extracts file-info with ignored=true for a file in a hand-picked ignore file (stdout) 1`] = `
-"{ "ignored": true, "inferredParser": null }
-"
-`;
+exports[`extracts file-info with ignored=true for a file in a hand-picked ignore file (stdout) 1`] = `"{ "ignored": true, "inferredParser": null }"`;
 
 exports[`extracts file-info with ignored=true for a file in a hand-picked ignore file (write) 1`] = `[]`;
 
 exports[`extracts file-info with inferredParser=foo when a plugin is hand-picked (stderr) 1`] = `""`;
 
-exports[`extracts file-info with inferredParser=foo when a plugin is hand-picked (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "foo" }
-"
-`;
+exports[`extracts file-info with inferredParser=foo when a plugin is hand-picked (stdout) 1`] = `"{ "ignored": false, "inferredParser": "foo" }"`;
 
 exports[`extracts file-info with inferredParser=foo when a plugin is hand-picked (write) 1`] = `[]`;
 
 exports[`extracts file-info with inferredParser=null for file.foo (stderr) 1`] = `""`;
 
-exports[`extracts file-info with inferredParser=null for file.foo (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": null }
-"
-`;
+exports[`extracts file-info with inferredParser=null for file.foo (stdout) 1`] = `"{ "ignored": false, "inferredParser": null }"`;
 
 exports[`extracts file-info with inferredParser=null for file.foo (write) 1`] = `[]`;
 
 exports[`extracts file-info with with ignored=true for a file in node_modules (stderr) 1`] = `""`;
 
-exports[`extracts file-info with with ignored=true for a file in node_modules (stdout) 1`] = `
-"{ "ignored": true, "inferredParser": null }
-"
-`;
+exports[`extracts file-info with with ignored=true for a file in node_modules (stdout) 1`] = `"{ "ignored": true, "inferredParser": null }"`;
 
 exports[`extracts file-info with with ignored=true for a file in node_modules (write) 1`] = `[]`;
 
-exports[`file-info should not try resolve config with --no-config (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`file-info should not try resolve config with --no-config (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`file-info should try resolve config (stderr) 1`] = `""`;
 
-exports[`file-info should try resolve config (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "override-js-parser" }
-"
-`;
+exports[`file-info should try resolve config (stdout) 1`] = `"{ "ignored": false, "inferredParser": "override-js-parser" }"`;
 
 exports[`file-info should try resolve config (write) 1`] = `[]`;
 
 exports[`non-exists ignore path (stderr) 1`] = `""`;
 
-exports[`non-exists ignore path (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`non-exists ignore path (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`non-exists ignore path (write) 1`] = `[]`;
diff --git a/tests/integration/__tests__/__snapshots__/infer-parser.js.snap b/tests/integration/__tests__/__snapshots__/infer-parser.js.snap
index 08d876da4..84a12db47 100644
--- a/tests/integration/__tests__/__snapshots__/infer-parser.js.snap
+++ b/tests/integration/__tests__/__snapshots__/infer-parser.js.snap
@@ -76,10 +76,7 @@ exports[`--write with unknown path and no parser multiple files (write) 1`] = `
 
 exports[`--write with unknown path and no parser specific file (stderr) 1`] = `"[error] No parser could be inferred for file "<cli>/infer-parser/FOO"."`;
 
-exports[`Interpreters (stdout) 1`] = `
-"{ "ignored": false, "inferredParser": "babel" }
-"
-`;
+exports[`Interpreters (stdout) 1`] = `"{ "ignored": false, "inferredParser": "babel" }"`;
 
 exports[`Known/Unknown (stdout) 1`] = `"known.js"`;
 
diff --git a/tests/integration/__tests__/__snapshots__/support-info.js.snap b/tests/integration/__tests__/__snapshots__/support-info.js.snap
index 6531893d2..1055f28c3 100644
--- a/tests/integration/__tests__/__snapshots__/support-info.js.snap
+++ b/tests/integration/__tests__/__snapshots__/support-info.js.snap
@@ -1153,8 +1153,7 @@ exports[`CLI --support-info (stdout) 1`] = `
       "type": "boolean"
     }
   ]
-}
-"
+}"
 `;
 
 exports[`CLI --support-info (write) 1`] = `[]`;