* save status.yml only when new tweets were found

git-svn-id: https://lab.mitty.jp/svn/lab/trunk@106 7d2118f6-f56c-43e7-95a2-4bb3031d96e7

diff --git a/Dev/twitter/twitterbot.pl b/Dev/twitter/twitterbot.pl
index 3923a6b..ae37ea6 100755 (executable)
--- a/Dev/twitter/twitterbot.pl
+++ b/Dev/twitter/twitterbot.pl
@@ -143,7 +143,7 @@ if ($conf->{mail}{body}) {
     DEBUG or sendmail(%mail) or warn "Error sending mail: $Mail::Sendmail::error\n";
 }
 
-if ($tweets) {
+if (ref $tweets and keys %{$tweets}) {
     # save last status to yaml file
     DEBUG  or YAML::Tiny::DumpFile("$Bin/status.yml", $stat);
     DEBUG and warn "status.yml => ", Dumper($stat);