Github user mjpost commented on the pull request:
https://github.com/apache/incubator-joshua/pull/8#issuecomment-215592405
As noted there, this was moved to $JOSHUA/scripts/preparation/tokenize.pl
(detokenize.pl), for the 6.1 release (part of an attempt to impose some
organization on the scripts under scripts/training, which is getting unwieldy).
I'll fix it there.
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