Typing Almost anything else, besides pushing to origin master, gives me this.

gistfile1.txt

/usr/local/heroku/lib/heroku/updater.rb:33: warning: parenthesize argument(s) for future version
Uploading SSH public key /Users/y/.ssh/heroku_rsa.pub
/usr/local/heroku/vendor/gems/netrc-0.7.1/lib/netrc.rb:79:in `readto': undefined local variable or method `count' for []:Array (NameError)
	from /usr/local/heroku/vendor/gems/netrc-0.7.1/lib/netrc.rb:85:in `parse'
	from /usr/local/heroku/vendor/gems/netrc-0.7.1/lib/netrc.rb:20:in `read'
	from /usr/local/heroku/lib/heroku/auth.rb:92:in `netrc'
	from /usr/local/heroku/lib/heroku/auth.rb:116:in `read_credentials'
	from /usr/local/heroku/lib/heroku/auth.rb:59:in `get_credentials'
	from /usr/local/heroku/lib/heroku/auth.rb:47:in `user'
	from /usr/local/heroku/lib/heroku/auth.rb:14:in `client'
	from /usr/local/heroku/lib/heroku/command/base.rb:38:in `heroku'
	from /usr/local/heroku/lib/heroku/command/keys.rb:37:in `add'
	from /usr/local/heroku/lib/heroku/command.rb:148:in `send'
	from /usr/local/heroku/lib/heroku/command.rb:148:in `run'
	from /usr/local/heroku/lib/heroku/cli.rb:9:in `start'
	from /usr/bin/heroku:28