Don't filter out global files that don't exist
Don't filter out global files that don't exist

We want to make sure that ConfigFinder yields them;
Ack doesn't care if the files that ConfigFinder gives
it exist or not.  Hopefully this doesn't break Windows.

openstrike/ack2,petdance/ack2,gregory-nisbet/ack2,openstrike/ack2,shlomif/ack2,packy/ack2,jamessan/ack2,karenetheridge/App-Ack,dagolden/ack2,gregory-nisbet/ack2,dagolden/ack2,h3xx/ack2,packy/ack2,karenetheridge/App-Ack,jamessan/ack2,petdance/ack2,openstrike/ack2,packy/ack2,h3xx/ack2,gregory-nisbet/ack2,petdance/ack2,petdance/ack2,packy/ack2,dagolden/ack2,dagolden/ack2,openstrike/ack2,jamessan/ack2,petdance/ack2,dagolden/ack2,h3xx/ack2,h3xx/ack2,jamessan/ack2,gregory-nisbet/ack2,packy/ack2,gregory-nisbet/ack2,jamessan/ack2,karenetheridge/App-Ack,packy/ack2,shlomif/ack2,shlomif/ack2,karenetheridge/App-Ack,h3xx/ack2,gregory-nisbet/ack2,karenetheridge/App-Ack,openstrike/ack2,petdance/ack2,h3xx/ack2,petdance/ack2,gregory-nisbet/ack2,openstrike/ack2,jamessan/ack2,gregory-nisbet/ack2,shlomif/ack2,karenetheridge/App-Ack,openstrike/ack2,shlomif/ack2,karenetheridge/App-Ack,dagolden/ack2,karenetheridge/App-Ack,packy/ack2,h3xx/ack2,packy/ack2,shlomif/ack2,petdance/ack2,h3xx/ack2,openstrike/ack2