use travis_retry to work around coveralls 422 err

jmoiron · jmoiron · commit 6765e6a314e1 · 2018-02-28T00:06:01.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -24,4 +24,4 @@ go:
 
 # run tests w/ coverage
 script:
-  - $GOPATH/bin/goveralls -service=travis-ci
+  - travis_retry $GOPATH/bin/goveralls -service=travis-ci
