30_pilight_*: fix set have to be return undef if no error accrued

git-svn-id: https://svn.fhem.de/fhem/trunk@8483 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem/FHEM/30_pilight_dimmer.pm

@@ -1,5 +1,4 @@
 ##############################################
-# $Id: 20_pilight_dimmer.pm 2015-02-26 Risiko $
 #
 # Usage
 # 
@@ -115,6 +114,7 @@ sub pilight_dimmer_Set($$)
   Log3 $me, 4, "$me(Set): $msg";
   
   IOWrite($hash, $msg);
+  return undef;
 }
 
 

fhem/FHEM/30_pilight_switch.pm

@@ -1,5 +1,4 @@
 ##############################################
-# $Id: 20_pilight_switch.pm 0.11 2015-03-29 Risiko $
 #
 # Usage
 # 
@@ -109,6 +108,7 @@ sub pilight_switch_Set($$)
   
   my $msg = "$me,$v";
   IOWrite($hash, $msg);
+  return undef;
 }