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As suggested in https://github.com/robbyrussell/oh-my-zsh/pull/3329#issuecomment-72062236

Make use of ant's project help feature instead of trying to parse XML with regex (see: http://stackoverflow.com/a/1732454/740787).
This is a behavioral change that does a few things:
 • adds support for ant imports, which were previously not recognized as possibly containing targets
 • supresses targets with no description, as these are conventionally for internal use only

Regen .ant_targets only if it's newer than build.xml? Yeah, that seems wrong.

-f%m was getting called twice in the stat_cmd
corrected format of stat command from y to Y.