parse: make the use of -p argument more explicit
parse: make the use of -p argument more explicit

The error message now displays:
"use ./parse -p" (or whatever the program name is)


git-svn-id: d8b078d517c8be834637447f210d7177f0fa38d6@6627 0ce88b0d-b2fd-0310-8134-9614164e65ea

hiranotaka/ccid-scr331-nttcom,LudovicRousseau/CCID,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom,hiranotaka/ccid-scr331-nttcom