branch: delete branch description if it's empty

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index 0e060f2..a6d3350 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -700,7 +700,7 @@ static int edit_branch_description(const char *branch_name)
        stripspace(&buf, 1);
 
        strbuf_addf(&name, "branch.%s.description", branch_name);
-       status = git_config_set(name.buf, buf.buf);
+       status = git_config_set(name.buf, buf.len ? buf.buf : NULL);
        strbuf_release(&name);
        strbuf_release(&buf);