man: auto detect maintainers list

Library/Homebrew/cmd/man.rb

@@ -53,6 +53,10 @@ module Homebrew
       }.
       reject { |s| s.strip.empty? }
 
+    variables[:maintainers] = (HOMEBREW_REPOSITORY/"README.md").
+      read[/Homebrew's current maintainers are (.*)\./, 1].
+      scan(/\[([^\]]*)\]/).flatten
+
     ERB.new(template, nil, ">").result(variables.instance_eval{ binding })
   end
 

Library/Homebrew/manpages/brew.1.md.erb

@@ -235,7 +235,7 @@ Homebrew Documentation: <https://github.com/Homebrew/brew/blob/master/share/doc/
 
 ## AUTHORS
 
-Homebrew's current maintainers are Misty De Meo, Andrew Janke, Xu Cheng, Mike McQuaid, Baptiste Fontaine, Brett Koonce, Martin Afanasjew, Dominyk Tiller, Tim Smith and Alex Dunn.
+Homebrew's current maintainers are <%= maintainers[0...-1].join(", ") %> and <%= maintainers[-1] %>.
 
 Former maintainers with significant contributions include Jack Nagel, Adam Vandenberg and Homebrew's creator: Max Howell.