am: release strbuf on error return in hg_patch_to_mail()

diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 70137b0b7e56e6319872fddc3527fe1094009dee..e99b5ddbf9a51be17bc0d976c942c29afe6563cd 100644 (file)
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "cache.h"
+#include "config.h"
 #include "refs.h"
 #include "commit.h"
 #include "diff.h"
@@ -407,7 +408,8 @@ static void shortlog(const char *name,
 }
 
 static void fmt_merge_msg_title(struct strbuf *out,
-       const char *current_branch) {
+                               const char *current_branch)
+{
        int i = 0;
        char *sep = "";