update-index: do not die too early in a read-only repository.

diff --git a/builtin-shortlog.c b/builtin-shortlog.c
index 3fc43dd7dd89fea2fb7f02e694ed632215002e13..edb40429ec4465f3bebba02f2174314dd0183225 100644 (file)
--- a/builtin-shortlog.c
+++ b/builtin-shortlog.c
@@ -4,7 +4,6 @@
 #include "diff.h"
 #include "path-list.h"
 #include "revision.h"
-#include <string.h>
 
 static const char shortlog_usage[] =
 "git-shortlog [-n] [-s] [<commit-id>... ]";