sipdump: docs - fix example config snippet

(cherry picked from commit f202cfe647c6a1ac92a3c2b8e2ee056d678fb802)
(cherry picked from commit 8df8974bb0f9754b126cac75eed76360e12d8a22)

src/modules/sipdump/doc/sipdump_admin.xml

@@ -309,8 +309,8 @@ event_route[sipdump:msg] {
 		</para>
 <programlisting  format="linespecific">
 ...
-loadmodule "rtimer.so
-loadmodule "exec.so
+loadmodule "rtimer.so"
+loadmodule "exec.so"
 ...
 modparam("rtimer", "timer", "name=tjobs;interval=300;mode=1;")
 modparam("rtimer", "exec", "timer=tjobs;route=TCLEAN")