lib/notiffany/notifier/notifysend.rb in notiffany-0.1.0 vs lib/notiffany/notifier/notifysend.rb in notiffany-0.1.1

@@ -30,10 +30,12 @@
       def _supported_hosts
         %w(linux linux-gnu freebsd openbsd sunos solaris)
       end
 
       def _check_available(_opts = {})
-        return true unless Shellany::Sheller.stdout("which notify-send").empty?
+        which = Shellany::Sheller.stdout("which notify-send")
+
+        return true unless which.nil? || which.empty?
 
         fail UnavailableError, "libnotify-bin package is not installed"
       end
 
       # Shows a system notification.