refine babel function statement

Author: weilinzung

src/transformers/babelSyntax.js

@@ -11,12 +11,15 @@ function cleanStackTrace(message) {
 
 function cleanMessage(message) {
   return message
-  // match until the last semicolon followed by a space
-  // this should match
-  // linux => "(SyntaxError: )Unexpected token (5:11)"
-  // windows => "(SyntaxError: C:/projects/index.js: )Unexpected token (5:11)"
+    // match until the last semicolon followed by a space
+    // this should match
+    // linux => "(SyntaxError: )Unexpected token (5:11)"
+    // windows => "(SyntaxError: C:/projects/index.js: )Unexpected token (5:11)"
     .replace(/^Module build failed.*:\s/, 'Syntax Error: ')
-    .replace(/^ModuleBuildError.*:\s/, 'Syntax Error: ');
+    // remove mini-css-extract-plugin loader tracing errors
+    .replace(/^Syntax Error: ModuleBuildError:.*:\s/, '')
+    // remove babel extra wording
+    .replace('SyntaxError: ', '');
 }
 
 function isBabelSyntaxError(e) {
@@ -36,4 +39,4 @@ function transform(error) {
   return error;
 }
 
-module.exports = transform;
+module.exports = transform;