lockfile.c: add a new public function unable_to_lock_message

diff --git a/cache.h b/cache.h
index cbe1935ba6b17b6ccc37a400ea7cf0f67830e1d0..8b12aa8766b99c8f505dcc8fdc404712ac3f5b82 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -559,6 +559,8 @@ struct lock_file {
 #define LOCK_DIE_ON_ERROR 1
 #define LOCK_NODEREF 2
 extern int unable_to_lock_error(const char *path, int err);
+extern void unable_to_lock_message(const char *path, int err,
+                                  struct strbuf *buf);
 extern NORETURN void unable_to_lock_index_die(const char *path, int err);
 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
 extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);