Log Message:
ruby-gnome2: update to 3.2.5.

Upstream changes (from NEWS):

== Ruby-GNOME2 3.2.5: 2018-05-02

This is a bug fix release of 3.2.4.

=== Changes

==== Document

  * Fixes

    * Fixed typos.
      [GitHub#1158][Patch by kojix2]
      [GitHub#1160][Patch by kojix2]

==== Ruby/GLib2

  * Fixes

    * Fixed a GC related crash bug.
      [GitHub#1162][Reported by Izumi Tsutsui]

==== Ruby/GObjectIntrospection

  * Improvements

    * Disabled NULL check for GObject Introspection < 1.42. Because
      GObject Introspection < 1.42 doesn't support "(nullable)"
      annotation yet.

==== Ruby/GdkPixbuf2

  * Improvements

    * (({GdkPixbuf::Pixbuf#composite})): Suppressed wrong warning.
      [GitHub#1156][Reported by Chaistrin]
      [GitHub#1157][Patch by cedlemo]

  * Fixes

    * Added a missing white space into message.
      [GitHub#1155][Reported by Robert A. Heiler]

    * (({GdkPixbuf::Pixbuf#composite})): Fixed a bug that width and
      height are ignored.
      [Patch by cedlemo]

==== Ruby/GTK3

  * Improvements

    * (({Gtk::TextBuffer#initialize})): Accepted "property-name" form.
      [GitHub#1161][Reported by kojix2]

==== Ruby/Poppler

  * Improvements

    * Added a workaround for poppler-glib 0.63 bug.
      [GitHub#1159][Reported by HIGUCHI Daisuke]

=== Thanks

  * Robert A. Heiler

  * Chaistrin

  * cedlemo

  * kojix2

  * Izumi Tsutsui

  * HIGUCHI Daisuke