Merge pull request #1255 from RosettaCommons/roccomoretti/option_spellcheck
Add "spell check" for options.
Add diagnostic output to suggest possible alternatives when a commandline option is not recognized due to:
* Wrong namespace (-out:file:pdb vs. -out:pdb)
* Wrong underscores (-out:file:scoreonly vs. -out:file:score_only)
* Wrong case (-flip_hnq vs. -flip_HNQ)
* Simple typos (-in:file:tagsfile vs. -in:file:tagfile; -out:perfex vs. -out:prefix)
(Note the typo detection is rather basic, and prone to over-suggesting - don't expect miracles.)
This is separate from (and subordinate to) the existing detection of ambiguous options.
This code should only trigger when Rosetta would have exited with an unrecognized option.
If you accidentally use the wrong option, it's not going to help.