Avoid potential out-of-range access if string is empty

twpayne · Jan 15, 2019 · e0b7bad · e0b7bad
1 parent 12c3b1f
commit e0b7bad
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/cmd/os_release.go b/cmd/os_release.go
@@ -75,6 +75,9 @@ func parseOSRelease(r io.Reader) (map[string]string, error) {
 
 // titilize returns s, titilized.
 func titilize(s string) string {
+	if s == "" {
+		return s
+	}
 	runes := []rune(s)
 	return string(append([]rune{unicode.ToTitle(runes[0])}, runes[1:]...))
 }