1 files changed, 6 insertions, 6 deletions
diff --git a/libgo/go/http/cgi/host.go b/libgo/go/http/cgi/host.go
index 9ea4c9d8bf2..365a712dfa8 100644
--- a/libgo/go/http/cgi/host.go
+++ b/libgo/go/http/cgi/host.go
@@ -333,18 +333,18 @@ func (h *Handler) handleInternalRedirect(rw http.ResponseWriter, req *http.Reque
 	h.PathLocationHandler.ServeHTTP(rw, newReq)
 }
 
-func upperCaseAndUnderscore(rune int) int {
+func upperCaseAndUnderscore(r rune) rune {
 	switch {
-	case rune >= 'a' && rune <= 'z':
-		return rune - ('a' - 'A')
-	case rune == '-':
+	case r >= 'a' && r <= 'z':
+		return r - ('a' - 'A')
+	case r == '-':
 		return '_'
-	case rune == '=':
+	case r == '=':
 		// Maybe not part of the CGI 'spec' but would mess up
 		// the environment in any case, as Go represents the
 		// environment as a slice of "key=value" strings.
 		return '_'
 	}
 	// TODO: other transformations in spec or practice?
-	return rune
+	return r
 }