clean-up code

* Remove trailing whitespace
  * Converts hard-tabs into two-space soft-tabs
  * Remove consecutive blank lines

lib/commit_ext.rb

@@ -1,11 +1,11 @@
 module CommitExt
   def safe_message
-    message.encode("UTF-8", 
-                   :invalid => :replace, 
-                   :undef => :replace, 
+    message.encode("UTF-8",
+                   :invalid => :replace,
+                   :undef => :replace,
                    :universal_newline => true,
                    :replace => "")
-  rescue 
+  rescue
     "-- invalid encoding for commit message"
   end
 end