* Improve chromatic++'s previous patch to unify the two error messages:
* Improve chromatic++'s previous patch to unify the two error messages:

    $ ./parrot -d
    Option -d expects an argument
    parrot -[abcCEfgGhjprStvVwy.] [-d [FLAGS]] [-O [level]] [-o FILE] <file>

    $ ./parrot -O
    Option -O expects an argument
    parrot -[abcCEfgGhjprStvVwy.] [-d [FLAGS]] [-O [level]] [-o FILE] <file>



git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@13345 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot