fix typos in messages frontend

[sebdiem]

The 'no-wrap', 'ignore-obsolete', 'no-fuzzy-matching', 'previous' and
'update-header-comment' were not correctly parsed in the update_catalog
command.

[codecov-io]

Current coverage is 89.97%

Merging #383 into master will not affect coverage as of f1efd85

@@            master    #383   diff @@
======================================
  Files           24      24       
  Stmts         3931    3931       
  Branches         0       0       
  Methods          0       0       
======================================
  Hit           3537    3537       
  Partial          0       0       
  Missed         394     394       

Review entire Coverage Diff as of f1efd85

Powered by Codecov. Updated on successful CI builds.

[akx]

Thank you for the patch, @sebdiem!

This will be merged via #386.

[sebdiem]

You're welcome !