Impl (#84171)

packages/flutter/lib/src/foundation/diagnostics.dart

@@ -850,7 +850,7 @@ class _PrefixedStringBuilder {
       _wrappableRanges,
       wrapWidth!,
       startOffset: firstLine ? prefixLineOne.length : _prefixOtherLines!.length,
-      otherLineOffset: firstLine ? _prefixOtherLines!.length : _prefixOtherLines!.length,
+      otherLineOffset: _prefixOtherLines!.length,
     );
     int i = 0;
     final int length = lines.length;
@@ -1009,7 +1009,7 @@ class _PrefixedStringBuilder {
   }
 
   String? _getCurrentPrefix(bool firstLine) {
-    return _buffer.isEmpty ? prefixLineOne : (firstLine ? _prefixOtherLines : _prefixOtherLines);
+    return _buffer.isEmpty ? prefixLineOne : _prefixOtherLines;
   }
 
   /// Write lines assuming the lines obey the specified prefixes. Ensures that

packages/flutter/test/services/raw_keyboard_test.dart

@@ -1777,7 +1777,7 @@ void main() {
     int keyCodeForModifier(int modifier, {required bool isLeft}) {
       switch (modifier) {
         case GtkKeyHelper.modifierMod1:
-          return isLeft ? 65513 : 65513;
+          return 65513;
         case GtkKeyHelper.modifierShift:
           return isLeft ? 65505 : 65506;
         case GtkKeyHelper.modifierControl: