add travis_retry for pecl install grpc (GoogleCloudPlatform#414)

bshaffer · web-flow · commit 22c00e2a885d · 2017-08-03T14:13:41.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -41,7 +41,7 @@ before_install:
   - mkdir -p build/logs
 
 before_script:
-  - pecl install grpc
+  - travis_retry pecl install grpc
 
 script:
   - testing/run_all_tests.sh
