* LDV::Zerobin->prune : fix error message

lib/LDV/Imgbin.pm

@@ -168,6 +168,7 @@ sub prune {
       unlink $self->_thumb_path($time);
     } 1;
   } or do {
+    chomp $@;
     $self->app->log->error($@);
     $@ =~ s/\s+ at \s+ .+ \s+ line \s+ \d+//oxi;
     $self->flash(error => $@);