Updated the Travis CI image.

arturgrigor · arturgrigor · commit 19d54e5dab07 · 2018-09-14T12:16:39.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode9
+osx_image: xcode10
 branches:
   only:
     - master
