6399483 chmod invalid permission error message should be improved

[mark.shellenb...@sun.com]

Author: marks
Repository: /hg/onnv/onnv-gate
Revision: 517cb2337aca6f27eb6d5200c9cce25a444800f4
Log message:
6399483 chmod invalid permission error message should be improved

Files:
        update: usr/src/lib/libsec/common/acl_lex.l