make regex match the comment and message (i.e. no '+' permitted)

Author: josephruscio

lib/authlogic/regex.rb

@@ -19,7 +19,7 @@ def self.email
     # A simple regular expression that only allows for letters, numbers, spaces, and .-_@. Just a standard login / username
     # regular expression.
     def self.login
-      /^\w[\w\.+\-_@ ]+$/
+      /^\w[\w\.\-_@ ]+$/
     end
   end
 end