From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 26 Sep 2012 04:56:07 +0000 (-0400)
Subject: fix dirname to handle input of form "foo/" correctly
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=507faa63cb12571c14d66eb37dedbe6adbbf40a8;hp=507faa63cb12571c14d66eb37dedbe6adbbf40a8

fix dirname to handle input of form "foo/" correctly

also optimized a bit.
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