pretty: treat "--format=" as an empty userformat

diff --git a/pretty.c b/pretty.c
index 3a1da6fd329efe1723bdb906a907ce4160c4633a..f97a7625156975f69e0654548b553d3950bac3b8 100644 (file)
--- a/pretty.c
+++ b/pretty.c
@@ -146,7 +146,7 @@ void get_commit_format(const char *arg, struct rev_info *rev)
        struct cmt_fmt_map *commit_format;
 
        rev->use_terminator = 0;
-       if (!arg || !*arg) {
+       if (!arg) {
                rev->commit_format = CMIT_FMT_DEFAULT;
                return;
        }
@@ -155,7 +155,7 @@ void get_commit_format(const char *arg, struct rev_info *rev)
                return;
        }
 
-       if (strchr(arg, '%')) {
+       if (!*arg || strchr(arg, '%')) {
                save_user_format(rev, arg, 1);
                return;
        }