chore: update implementation

Author: ldez

pkg/golinters/modernize/testdata/fix/out/fmtappendf.go

@@ -35,10 +35,8 @@ func comma() {
 	type S struct{ Bytes []byte }
 	var _ = struct{ A S }{
 		A: S{
-			Bytes: // want "Replace .*Sprint.* with fmt.Appendf"
-			fmt.Appendf(nil, "%d", 0),
+			Bytes: fmt.Appendf(nil, "%d", 0),
 		},
 	}
-	_ = // want "Replace .*Sprint.* with fmt.Appendf"
-		fmt.Appendf(nil, "%d", 0)
+	_ = fmt.Appendf(nil, "%d", 0)
 }

pkg/golinters/modernize/testdata/fix/out/stringscutprefix.go

@@ -104,7 +104,7 @@ func _() {
 	}
 	var ok bool // define an ok variable to test the fix won't shadow it for its if stmt body
 	_ = ok
-	if after, ok0 := strings.CutPrefix(s, pre); ok0 { // want "TrimPrefix can be simplified to CutPrefix"
+	if after, ok := strings.CutPrefix(s, pre); ok { // want "TrimPrefix can be simplified to CutPrefix"
 		println(after)
 	}
 	var predefined string