Merge pull request #115 from JackDanger/sleep-when-curses-is-unavailable

Sleep when curses is unavailable

fzf

@@ -40,6 +40,7 @@ begin
   require 'curses'
 rescue LoadError
   $stderr.puts 'curses gem is not installed. Try `gem install curses`.'
+  sleep 1
   exit 1
 end
 require 'thread'