DRY determining server protocol

Signed-off-by: Daniel Morris <daniel@honestempire.com>
diff --git a/system/core/Common.php b/system/core/Common.php
index 57374b0..09b73ef 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -488,13 +488,9 @@
 		{
 			header('Status: '.$code.' '.$text, TRUE);
 		}
-		elseif ($server_protocol === 'HTTP/1.0')
-		{
-			header('HTTP/1.0 '.$code.' '.$text, TRUE, $code);
-		}
 		else
 		{
-			header('HTTP/1.1 '.$code.' '.$text, TRUE, $code);
+			header($server_protocol.' '.$code.' '.$text, TRUE, $code);
 		}
 	}
 }