check version of rpmbuild

Author: apoorvam

.travis.yml

@@ -14,6 +14,9 @@ addons:
     - rpm
     - snapd
 before_install:
+- rpmbuild --version
+- sudo apt-get update -qq
+- rpmbuild --version
 - openssl aes-256-cbc -K $encrypted_12c8071d2874_key -iv $encrypted_12c8071d2874_iv
   -in snap.login.enc -out snap.login -d
 - curl -L -s https://github.com/golang/dep/releases/download/v${DEP_VERSION}/dep-linux-amd64