added proper svn:ignore 



git-svn-id: http://gperftools.googlecode.com/svn/trunk@191 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
actually made svn:ignore work



git-svn-id: http://gperftools.googlecode.com/svn/trunk@192 6b5cf1ce-ec42-a296-1ba9-69fdba395a50