Set return value to zero, if the PR ID is negative in

`create_pull_request_dir()`.

1 files changed, 1 insertions, 1 deletions

diff --git a/git.c b/git.c
index 495b08f..193c72a 100644
--- a/git.c
+++ b/git.c
@@ -285,7 +285,7 @@ file **get_branch_commits(git_branch *br) {
 }
 
 int create_pull_request_dir(pull_request *pr, int id, const char *root) {
-	int ret = id;
+	int ret = (id >= 0) ? id : 0;
 	struct stat st;
 	file **commits;
 	char *pr_dir;