res_pjsip.c: Correct minor typos in 'realm' documentation.

Change-Id: I886936b808def5540d40071321e72f6bfa19063a

configs/samples/pjsip.conf.sample

@@ -994,12 +994,13 @@
                ; headers.  If not specified, the global object's
                ; "default_realm" will be used.
                ;
-               ; For outgoing authentication (asterisk is the UAS), this
+               ; For outgoing authentication (asterisk is the UAC), this
                ; must either be the realm the server is expected to send,
                ; or left blank or contain a single '*' to automatically
                ; use the realm sent by the server. If you have multiple
-               ; auth object for an endpoint, the realm is also used to
+               ; auth objects for an endpoint, the realm is also used to
                ; match the auth object to the realm the server sent.
+               ;
                ; Using the same auth section for inbound and outbound
                ; authentication is not recommended.  There is a difference in
                ; meaning for an empty realm setting between inbound and outbound

res/res_pjsip.c

@@ -1605,11 +1605,11 @@
 						<para>
 						</para>
 						<para>
-						For outgoing authentication (asterisk is the UAS), this
+						For outgoing authentication (asterisk is the UAC), this
 						must either be the realm the server is expected to send,
 						or left blank or contain a single '*' to automatically
 						use the realm sent by the server. If you have multiple
-						auth object for an endpoint, the realm is also used to
+						auth objects for an endpoint, the realm is also used to
 						match the auth object to the realm the server sent.
 						</para>
 						<para>