Auto merge of #5392 - bundler:improve-messaging, r=segiddins
Auto merge of #5392 - bundler:improve-messaging, r=segiddins

marketing-ify the post-install message

/cc @segiddins @mrb

(cherry picked from commit 5db7e161e9057603188600549c226a1b40807e6e)

dilumnavanjana/bundler,bundler/bundler,dilumnavanjana/bundler,bundler/bundler,mvz/bundler,mvz/bundler