WIP: * src/wget.c: Fix looping when wrong credentials supplied
This patch try to resolve #259 (closed).
Unfortunately, when I rebase my libmicrohttpd test using this fix, this still fail in MinGW64 test (looping) [0]. Other tests is fine [1].
[0] https://gitlab.com/dstw/wget2/pipelines/11086366/builds
[1] https://travis-ci.org/dstw/wget2/builds/267352247