Update .travis.yml

Added cache option
WarwickCIM · Apr 9, 2019 · 99bafd6 · 99bafd6
1 parent a72a25d
commit 99bafd6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -3,3 +3,4 @@ r:
   - oldrel
   - release
   - devel
+cache: packages