replace all tabs with four spaces

The PEAR coding standards decree: no tabs, but indent by four spaces.
I've done a global search-and-replace on all tabs, replacing them by
four spaces. This is a huge change, but it will go a long way to
getting us towards phpcs-compliance. And that means better code
readability, and that means more participation.

darcs-hash:20081223191907-84dde-21e8efe210e6d5d54e935a22d0cee5c7bbfc007d.gz

classes/Sms_carrier.php

@@ -21,8 +21,8 @@ class Sms_carrier extends Memcached_DataObject
 
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
-	
-	function toEmailAddress($sms) {
-		return sprintf($this->email_pattern, $sms);
-	}
+    
+    function toEmailAddress($sms) {
+        return sprintf($this->email_pattern, $sms);
+    }
 }