sipmsgops: Fix docs for sipmsg_validate()

(cherry picked from commit d618825)
(cherry picked from commit 070f8b7)

modules/sipmsgops/doc/sipmsgops_admin.xml

@@ -771,9 +771,9 @@ add_body_part("Hello World!", "text/plain");
 				</para></listitem>
 				<listitem><para><emphasis>-22</emphasis> - To header parse error
 				</para></listitem>
-				<listitem><para><emphasis>-23</emphasis> - From header parse error
+				<listitem><para><emphasis>-23</emphasis> - Bad hostname in To header
 				</para></listitem>
-				<listitem><para><emphasis>-24</emphasis> - Bad hostname in To header
+				<listitem><para><emphasis>-24</emphasis> - From header parse error
 				</para></listitem>
 				<listitem><para><emphasis>-25</emphasis> - Bad hostname in From header
 				</para></listitem>