fix segfault for --list-langs

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1006 d0cd1f9f-072b-0410-8dd7-cf729c803f20
fix issue 1069: improve identification of OS X 10.9.1

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1008 d0cd1f9f-072b-0410-8dd7-cf729c803f20