Update podspec CI test config.

Author: andersio

.travis.yml

@@ -57,7 +57,8 @@ matrix:
         - JOB=CARTHAGE-watchOS
     - script:
       - gem install cocoapods --pre
-      - pod repo update
+      - pod version
+      - pod repo update --silent
       - pod lib lint ReactiveObjC.podspec
       env:
         - JOB=PODSPEC