Log message:
Pullup ticket #5990 - requested by nia
graphics/SDL2_image: security fix

Revisions pulled up:
- graphics/SDL2_image/Makefile                                  1.12
- graphics/SDL2_image/distinfo                                  1.6

---
   Module Name:	pkgsrc
   Committed By:	nia
   Date:		Sun Jul  7 05:46:51 UTC 2019

   Modified Files:
   	pkgsrc/graphics/SDL2_image: Makefile distinfo

   Log message:
   SDL2_image: Update to 2.0.5

   Changes:
    * Updated external libraries libpng-1.6.32, libwebp-1.0.2
    * Fixed a number of security issues:
      TALOS-2019-0820
      TALOS-2019-0821
      TALOS-2019-0841
      TALOS-2019-0842
      TALOS-2019-0843
      TALOS-2019-0844
    * Ported SDL_image to emscripten