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);
 		}
 	}
 }
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 847b1be..378eec0 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -231,6 +231,7 @@
    -  Added method ``strip_image_tags()`` to the :doc:`Security Library <libraries/security>`.
    -  Changed ``_exception_handler()`` to respect php.ini 'display_errors' setting.
    -  Added support for IPv4 range masks (e.g. 192.168.1.1/24) to specify ranges of IP addresses for use with the proxy_ips setting.
+   -  Removed redundant conditional to determine HTTP server protocol in ``set_status_header()``
 
 Bug fixes for 3.0
 ------------------