diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 0a4264c7e5..8d81861ec5 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -209,20 +209,26 @@ class Pathname
     self.to_s[0, prefix.length] == prefix
   end
 
+  # perhaps confusingly, this Pathname object becomes the symlink pointing to
+  # the src paramter.
   def make_relative_symlink src
     self.dirname.mkpath
     Dir.chdir self.dirname do
       # TODO use Ruby function so we get exceptions
       # NOTE Ruby functions may work, but I had a lot of problems
-      rv=system 'ln', '-sf', src.relative_path_from(self.dirname)
+      rv = system 'ln', '-sf', src.relative_path_from(self.dirname)
       unless rv and $? == 0
-        raise <<-EOS
-Could not create symlink #{to_s}.
-Check that you have permssions on #{self.dirname}
-        EOS
+        raise <<-EOS.undent
+          Could not create symlink #{to_s}.
+          Check that you have permssions on #{self.dirname}
+          EOS
       end
     end
   end
+
+  def / that
+    join that.to_s
+  end
 end
 
 # sets $n and $d so you can observe creation of stuff