Jar arguments with a single '-' were not parsed correctly if options were
present. For example, in `./flink run <options> file.jar -arg value` the
jar arguments would be parsed as "arg" and "value". Interestingly, this only
happened when <options> were present.

The issue has been fixed in commons-cli 1.3.1.

A test case was added to test for regressions.

This closes #2139