fix in 'zlib.obj', animage can save '*.png' files git-svn-id: svn://kolibrios.org@6741 a494cfbc-eb01-0410-851d-a64ba20cac60
git-svn-id: svn://kolibrios.org@6617 a494cfbc-eb01-0410-851d-a64ba20cac60