MT#64566 Adjust log level in w_dlg_get_var from error to info

When invoking dlg_get_var(), the absence of the requested dialog variable
is no longer treated as an error condition.
The event is now logged at info level.

Change-Id: I26b5284c9a9c13b0002a7e89116acedef5f9724f

debian/patches/series

@@ -49,6 +49,7 @@ sipwise/pvheaders_memleak.patch
 sipwise/dlg_get_var_error_more_verbose_on_dlg
 sipwise/tlsa_dynamic_linking_libz.patch
 sipwise/permissions_consider_db_mode_when_rpc_reload.patch
+sipwise/dialog_w_dlg_get_var_no_error_msg.patch
 
 ### Don't just put stuff in any order
 ### use gbp pq import/export tooling to help maintain patches

debian/patches/sipwise/dialog_w_dlg_get_var_no_error_msg.patch

@@ -0,0 +1,20 @@
+--- a/src/modules/dialog/dialog.c
++++ b/src/modules/dialog/dialog.c
+@@ -2159,7 +2159,7 @@ static int w_dlg_get_var(
+ 	}
+ 	if(pv_set_spec_value(msg, dst_pv, 0, &dst_val) != 0) {
+ 		if (dst_pv && dst_pv->type != PVT_OTHER)
+-			LM_ERR("unable to set value to dst_pv\n");
++			LM_INFO("unable to set value to dst_pv\n");
+ 		if(val)
+ 			goto error;
+ 		else
+@@ -2171,7 +2171,7 @@ error:
+ 	pv_get_null(msg, NULL, &dst_val);
+ 	if(pv_set_spec_value(msg, dst_pv, 0, &dst_val) != 0) {
+ 		if (dst_pv && dst_pv->type != PVT_OTHER)
+-			LM_ERR("unable to set null value to dst_pv\n");
++			LM_INFO("unable to set null value to dst_pv\n");
+ 	}
+ 	return -1;
+ }