builtin-tag.c: guard config parser from value=NULL

user.signingkey configuration expects a string value.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-tag.c b/builtin-tag.c
index 03e70155fc676a8dd38ca5cef800ed4a446e921a..4a4a88c10b4b2f9e55662bd4c1c17051ae7e6aac 100644 (file)
--- a/builtin-tag.c
+++ b/builtin-tag.c
@@ -258,7 +258,7 @@ static int git_tag_config(const char *var, const char *value)
 {
        if (!strcmp(var, "user.signingkey")) {
                if (!value)
-                       die("user.signingkey without value");
+                       return config_error_nonbool(value);
                set_signingkey(value);
                return 0;
        }