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

apply.whitespace configuration expects a string value.

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

diff --git a/builtin-apply.c b/builtin-apply.c
index 15432b6782400b556333ee4117c7daaff20412ab..a11b1bbeee9568adbf8a3e32f77d14b132985061 100644 (file)
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -2746,6 +2746,8 @@ static int apply_patch(int fd, const char *filename, int inaccurate_eof)
 static int git_apply_config(const char *var, const char *value)
 {
        if (!strcmp(var, "apply.whitespace")) {
+               if (!value)
+                       return config_error_nonbool(var);
                apply_default_whitespace = xstrdup(value);
                return 0;
        }