Tweak variable declaration printing

tests/incremental_basic/__snapshots__/jsfmt.spec.js.snap

@@ -11,12 +11,12 @@ module.exports = a;
 
 exports[`test b.js 1`] = `
 "// @flow
-var a = require('./a');
+var a = require(\'./a\');
 var b: number = a;
 module.exports = b;
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // @flow
-var a = require("./a");
+var a = require(\"./a\");
 var b: number = a;
 module.exports = b;
 "
@@ -24,12 +24,12 @@ module.exports = b;
 
 exports[`test c.js 1`] = `
 "// @flow
-var b = require('./b');
+var b = require(\'./b\');
 var c: string = b;
 module.exports = c;
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // @flow
-var b = require("./b");
+var b = require(\"./b\");
 var c: string = b;
 module.exports = c;
 "

tests/incremental_basic/tmp1/__snapshots__/jsfmt.spec.js.snap

@@ -1,11 +1,11 @@
 exports[`test b.js 1`] = `
 "// @flow
-var a = require('./a');
+var a = require(\'./a\');
 var b = a;
 module.exports = b;
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // @flow
-var a = require("./a");
+var a = require(\"./a\");
 var b = a;
 module.exports = b;
 "

tests/incremental_basic/tmp3/__snapshots__/jsfmt.spec.js.snap

@@ -1,11 +1,11 @@
 exports[`test b.js 1`] = `
 "// @flow
-var a = require('./a');
+var a = require(\'./a\');
 var b: number = a;
 module.exports = b;
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // @flow
-var a = require("./a");
+var a = require(\"./a\");
 var b: number = a;
 module.exports = b;
 "