Log Message:
devel/ruby-i18n: update to 1.5.3

1.5.3 (2019-01-21)

* Fix issue where localize would return strange messages if the translation
  was missing - #464

1.5.2 (2019-01-14)

* Fixed a bug where the required_ruby_version was not set correctly in the
  gemspec - #462

1.5.1 (2019-01-06)

(Note that there is no v1.5.0 release. was prepping this release and found
some more changes to make. So v1.5.1 is the first release for the v1.5.x
series)

* Fixed a regression that happened when numeric translation keys contained
  leading zeros: #456 / #457
* Removed support for Ruby versions older than 2.3. Ruby 2.2 is now 4 years
  old. Applications have had ample time to upgrade, and if they haven't done
  so, now is an opportune time to do so.
* Removed some code that was checking for RUBY_VERSION <= 1.9
* Began testing over Ruby 2.6.

1.4.0 (2019-01-01)

* Fixed two issues with i18n and JRuby compat (commit fb0c8be and #455). See
  #447.
* Fixed issue where keys in an array were not symbolised #450
* Fixed issue where ActiveSupport::HashWithIndifferentAccess was not handled
  correctly #454

1.3.0 (2019-01-01)

* Updated post-install message to be more explicit about what versions things
  changed in - #446
* Fixed a regression in backends where keys were incorrectly typecast - #443,
  #444, #445, etc.

Please note that as of this release, only 5.x and greater versions of Rails
are supported (it might help to think of it as ~> 5.0, sorta.)