Make ap_rputs an inline function, as it is mostly used with string constants

and this allows the compiler to optimize the strlen() call away.

Submitted by: Christophe Jaillet <christophe jaillet wanadoo fr>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1131465 13f79535-47bb-0310-9956-ffa450edef68