travis: drop 2.2 and include 2.6

carlosmn · carlosmn · commit fa9d15a7614b · 2019-02-15T14:57:22.000+01:00
The 2.2 version isn't working on Travis anymore and it's too old for us to care
about anyway.

Since the 2.6 version has been released, include that one while here.
diff --git a/.travis.yml b/.travis.yml
@@ -6,10 +6,10 @@ os:
   - osx
 
 rvm:
-  - 2.2.5
   - 2.3.3
   - 2.4.0
   - 2.5.0
+  - 2.6
   - ruby-head
   - rbx-2
 

-Original file line number
+Diff line change
   - osx
 rvm:
 -  - 2.2.5
   - 2.3.3
   - 2.4.0
   - 2.5.0
 +  - 2.6
   - ruby-head
   - rbx-2