devel/renpy: update to 6.99.12.4
6.99.12.4.2187: February 28, 2017
This release fixes a number of bugs, including one that would
cause the renpy.input function to crash. It improves the console
(accessed with shift+O), and updates translations.Changes: https://www.renpy.org/doc/html/changelog.html#ren-py-6-99-12-4
MFH: 2017Q1