builtin/merge.c: drop a parameter that is never used

diff --git a/shortlog.h b/shortlog.h
index bc02cc29ef0d5f640ab390614def995f30fe4691..de4f86fb970e15491f44dfe38b7d7d6fdc3be9ad 100644 (file)
--- a/shortlog.h
+++ b/shortlog.h
@@ -12,6 +12,7 @@ struct shortlog {
        int in1;
        int in2;
        int user_format;
+       int abbrev;
 
        char *common_repo_prefix;
        int email;