Update .travis.yml

.travis.yml

@@ -35,7 +35,7 @@ jobs:
       before_install:
         - brew install mysql
         - brew services start mysql
-        - brew install r@4.0.2
+        - brew install r
         - R --version
         - brew cask install miniconda
         - eval "$(/opt/miniconda3/condabin/conda shell.bash hook)"
@@ -69,4 +69,4 @@ notifications:
     template:
       - "Repo `%{repository_slug}` *%{result}* build (<%{build_url}|#%{build_number}>) for commit (<%{compare_url}|%{commit}>) on branch `%{branch}`."
       - "Execution time: *%{duration}*"
-      - "Message: %{message}"
+      - "Message: %{message}"