Update to prettier@2.

See https://prettier.io/blog/2020/03/21/2.0.0.html for details.

Author: Robert Jackson

package.json

@@ -87,7 +87,7 @@
     "loader.js": "^4.7.0",
     "mocha": "^7.1.1",
     "module-name-inliner": "link:./tests/dummy/lib/module-name-inliner",
-    "prettier": "^1.19.1",
+    "prettier": "^2.0.4",
     "qunit-dom": "^0.9.2",
     "release-it": "^13.5.2",
     "release-it-lerna-changelog": "^1.0.3"

yarn.lock

@@ -122,16 +122,7 @@
     "@babel/traverse" "^7.8.3"
     "@babel/types" "^7.8.3"
 
-"@babel/helper-function-name@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.8.3.tgz#eeeb665a01b1f11068e9fb86ad56a1cb1a824cca"
-  integrity sha512-BCxgX1BC2hD/oBlIFUgOCQDOPV8nSINxCwM3o93xP4P9Fq6aV5sgv2cOOITDMtCfQ+3PvHp3l689XZvAM9QyOA==
-  dependencies:
-    "@babel/helper-get-function-arity" "^7.8.3"
-    "@babel/template" "^7.8.3"
-    "@babel/types" "^7.8.3"
-
-"@babel/helper-function-name@^7.9.5":
+"@babel/helper-function-name@^7.8.3", "@babel/helper-function-name@^7.9.5":
   version "7.9.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.9.5.tgz#2b53820d35275120e1874a82e5aabe1376920a5c"
   integrity sha512-JVcQZeXM59Cd1qanDUxv9fgJpt3NeKUaqBqUEvfmQ+BCOKq2xUgaWZW2hr0dkbyJgezYuplEoh5knmrnS68efw==
@@ -8423,10 +8414,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-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==
+prettier@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.4.tgz#2d1bae173e355996ee355ec9830a7a1ee05457ef"
+  integrity sha512-SVJIQ51spzFDvh4fIbCLvciiDMCrRhlN3mbZvv/+ycjvmF5E73bKdGfU8QDLNmjYJf+lsGnDBC4UUnvTe5OO0w==
 
 printf@^0.5.1:
   version "0.5.2"