updated travis

mllg · mllg · commit 18f163664b04 · 2017-09-01T13:33:13.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,9 @@ sudo: false
 language: r
 cache: packages
 
+env:
+  - _R_CHECK_LENGTH_1_CONDITION_=true
+
 addons:
   apt:
     packages:
