Fix spacing

Author: mgomes

lib/api_auth/middleware/excon.rb

@@ -1,7 +1,6 @@
 module ApiAuth
   module Middleware # :nodoc:
     # Excon middleware for automatically signing requests
-    # Based on contribution by Pat Leamon (@stiak) in PR #154
     class Excon # :nodoc:
       def initialize(stack)
         @stack = stack
@@ -48,4 +47,4 @@ def body
       end
     end
   end
-end
+end