Add note to transport configuration that a restart is required to change transports.

(closes issue ASTERISK-22094)
reported by Rusty Newton



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397073 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_pjsip.c

@@ -289,6 +289,8 @@
 						to the first configured transport in <filename>pjsip.conf</filename> which is
 						valid for the URI we are trying to contact.
 						</para></warning>
+						<warning><para>Transport configuration is not affected by reloads. In order to
+						change transports, a full Asterisk restart is required</para></warning>
 					</description>
 				</configOption>
 				<configOption name="trust_id_inbound" default="no">