cmd/go: fix version -m not go executable file exits with status 0

Fixes #66426

Change-Id: Ie07ab6012063c0f087fd0525812079764444f8fa

src/cmd/go/internal/version/version.go

@@ -92,7 +92,10 @@ func runVersion(ctx context.Context, cmd *base.Command, args []string) {
 		if info.IsDir() {
 			scanDir(arg)
 		} else {
-			scanFile(arg, info, true)
+			ok := scanFile(arg, info, true)
+			if !ok {
+				base.SetExitStatus(1)
+			}
 		}
 	}
 }
@@ -132,15 +135,15 @@ func isGoBinaryCandidate(file string, info fs.FileInfo) bool {
 // If mustPrint is true, scanFile will report any error reading file.
 // Otherwise (mustPrint is false, because scanFile is being called
 // by scanDir) scanFile prints nothing for non-Go binaries.
-func scanFile(file string, info fs.FileInfo, mustPrint bool) {
+func scanFile(file string, info fs.FileInfo, mustPrint bool) (ok bool) {
 	if info.Mode()&fs.ModeSymlink != 0 {
 		// Accept file symlinks only.
 		i, err := os.Stat(file)
 		if err != nil || !i.Mode().IsRegular() {
 			if mustPrint {
 				fmt.Fprintf(os.Stderr, "%s: symlink\n", file)
 			}
-			return
+			return false
 		}
 		info = i
 	}
@@ -161,7 +164,7 @@ func scanFile(file string, info fs.FileInfo, mustPrint bool) {
 				}
 			}
 		}
-		return
+		return false
 	}
 
 	fmt.Printf("%s: %s\n", file, bi.GoVersion)
@@ -170,4 +173,5 @@ func scanFile(file string, info fs.FileInfo, mustPrint bool) {
 	if *versionM && len(mod) > 0 {
 		fmt.Printf("\t%s\n", strings.ReplaceAll(mod[:len(mod)-1], "\n", "\n\t"))
 	}
+	return true
 }