OPM/ResInsight — pull request #162 by andlaus (2014-02-28 12:15:41+00:00)
Title: Print the help message if we encounter a positional command-line parameter

In my case, I accidentally used the old command line parameter
convention (single dash), which caused 'ResInsight -case $FOO' to do
nothing instead of bailing out.

That said, I'm not 100% sure that no positional parameters are
used. To me, he help message and the parameter parsing code looks this
way, though...