Updating travis osx_image to xcode11.5.

Ruben Nine · Ruben Nine · commit f491a0351715 · 2020-07-08T13:50:49.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode11.3
+osx_image: xcode11.5
 branches:
   only:
     - master
