ENIGMA2: suppress warning for my $_ with newer Perl versions, forum #msg251194

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@7703 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem/FHEM/70_ENIGMA2.pm

@@ -58,6 +58,8 @@ use IO::Socket;
 use HttpUtils;
 use Encode;
 
+no warnings 'experimental::lexical_topic';
+
 sub ENIGMA2_Set($@);
 sub ENIGMA2_Get($@);
 sub ENIGMA2_GetStatus($;$);