luac5.3 -v (return code: 0)
Lua 5.3.3 Copyright (C) 1994-2016 Lua.org, PUC-Rio
luac5.3 --help (return code: 1)
luac5.3: unrecognized option '--help'
usage: luac5.3 [options] [filenames]
Available options are:
-l list (use -l -l for full listing)
-o name output to file 'name' (default is "luac.out")
-p parse only
-s strip debug information
-v show version information
-- stop handling options
- stop handling options and process stdin