Log Message:
Update to 1.50

Upstream changes:
1.50  2018-02-10
  *** Revert support for identical start/end delimiters (e.g.: @@foo@@, XXfooXX)
      due to breakage with nested tags (see
      https://github.com/mschout/perl-text-template/issues/8).  Will revisit
      this in a future release.

1.49  2018-02-07
    - Fix failing tests in v1.48 under perl < 5.8.9

1.48  2018-02-07
    - remove COPYING and Artistic files from the dist.  These are replaced by
      the Dist::Zilla generated LICENSE file.
    - use strict/warnings (thanks Mohammad S Anwar)
    - remove $VERSION checks from tests. This makes it easier to run the test
      with Dist::Zilla and avoids maintenance issue of updating the tests for
      each release (Thanks Andrew Ruder).
    - Allow precompiled templates to work with preprocessing [#29928] (Thanks
      Nik LaBelle)
    - Add "strict" option to fill_in().  This adds "use \ 
strict" and "use vars
      (...)" to the prepend section, and only the keys of the HASH option are
      allowed in the template.  (Thanks Desmond Daignault, Kivanc Yazan, CJM)
      [55696]
    - Fix templates with inline comments without newline after comment for perl
      < 5.18 [34292]
    - Don't use bareword file handles
    - use three arg form of open()
    - Fix BROKEN behaviour so that it returns the text accumulated so far on
      undef as documented [28974]
    - Source code cleanups
    - Minimum perl version is now 5.8.0
    - Allow start/end delimiters to be identical (e.g.: @@foo@@, XXfooXX)
      (Thanks mirod) [46639]
    - Fix + document the FILENAME parameter to fill_in() (Thanks VDB) [106093]
    - Test suite cleanups:
        + turn on strict/warnings for all tests
        + run tests through perltidy and formatting cleanup
        + remove number prefixes from test names
        + use Test::More instead of generating TAP by hand
        + use three-arg form of open()
        + don't use indirect object syntax
        + don't use bareword file handles
        + use File::Temp to generate temporary files