Update p5-Text-Diff to 1.44.

1.44 2016-02-26 NEILB
    - Fixed the handling of text without a trailing newline. This module now
      adds the same text that the diff tool does, "\n\\ No newline at end of
      file\n". Previously this module simply produced broken diffs when one or
      both files had no trailing newline. Fixed by Dave Rolsky. GitHub #1.

(wiz)