dialplan: fix dp_replace() in cmd_export_t struct

In the struct 'int param_no' is set to '2'. But dp_replace() has actually three
parameters (dpid, inval, outvar), so kamailio's cfg parser fails when
dp_replace() is called:

yyparse(): cfg. parser: failed to find command dp_replace (params 3)
yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 366, column 45: unknown command, missing loadmodule?

This commit fixes 'int param_no' to address this.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

src/modules/dialplan/dialplan.c

@@ -115,7 +115,7 @@ static cmd_export_t cmds[]={
 		ANY_ROUTE},
 	{"dp_match",(cmd_function)w_dp_match,	2,	fixup_igp_spve,
 		fixup_free_igp_spve, ANY_ROUTE},
-	{"dp_replace",(cmd_function)w_dp_replace,	2,	dp_replace_fixup,
+	{"dp_replace",(cmd_function)w_dp_replace,	3,	dp_replace_fixup,
 		dp_replace_fixup_free, ANY_ROUTE},
 	{0,0,0,0,0,0}
 };