Bump Prettier dependency to 1.19.1

package.json

@@ -1,6 +1,6 @@
 {
   "name": "prettier",
-  "version": "1.19.1",
+  "version": "1.20.0-dev",
   "description": "Prettier is an opinionated code formatter",
   "bin": {
     "prettier": "./bin/prettier.js"
@@ -96,7 +96,7 @@
     "jest-snapshot-serializer-raw": "1.1.0",
     "jest-watch-typeahead": "0.4.0",
     "mkdirp": "0.5.1",
-    "prettier": "1.19.0",
+    "prettier": "1.19.1",
     "prettylint": "1.0.0",
     "rimraf": "3.0.0",
     "rollup": "1.26.3",

yarn.lock

@@ -5486,10 +5486,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@1.19.0:
-  version "1.19.0"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.0.tgz#3bec4489d5eebcd52b95ddd2c22467b5c852fde1"
-  integrity sha512-GlAIjk6DjkNT6u/Bw5QCWrbzh9YlLKwwmJT//1YiCR3WDpZDnyss64aXHQZgF8VKeGlWnX6+tGsKSVxsZT/gtA==
+prettier@1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
+  integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
 
 pretty-format@^23.0.1, pretty-format@^23.2.0:
   version "23.2.0"