git_extract_argv0_path: do nothing without RUNTIME_PREFIX

diff --git a/path.c b/path.c
index efcedafba6f2c0cae218f2d32425c13272df8dea..897b3417d40f7b5bd01914b8923f2f3f89350c0b 100644 (file)
--- a/path.c
+++ b/path.c
@@ -1257,6 +1257,11 @@ int is_ntfs_dotgit(const char *name)
                }
 }
 
+int looks_like_command_line_option(const char *str)
+{
+       return str && str[0] == '-';
+}
+
 char *xdg_config_home(const char *filename)
 {
        const char *home, *config_home;