connect.c: guard config parser from value=NULL

core.gitproxy configuration expects a string value.

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

diff --git a/connect.c b/connect.c
index 3aefd4a..71597d4 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -370,6 +370,8 @@ static int git_proxy_command_options(const char *var, const char *value)
 
                if (git_proxy_command)
                        return 0;
+               if (!value)
+                       return config_error_nonbool(var);
                /* [core]
                 * ;# matches www.kernel.org as well
                 * gitproxy = netcatter-1 for kernel.org