Verify command line arguments
Verify command line arguments

Don't access the command line arguments at an index if there are none,
which exposes a bug in xulrunner 1.9.2+. Doing so will crash (in native
code) the JS engine. In 1.9.1, an "out of bounds" call to getArgument
would just return null;

abock/moonshine,abock/moonshine,abock/moonshine,abock/moonshine