Improve branch coverage

tests/test_cmdline.py

@@ -493,6 +493,10 @@ class TestCmdline(object):
         self.ok("insert -t -r 120 --start '03/23/2012 06:05:00' /newton/prep "
                 "/dev/null")
 
+        # --quiet option
+        self.ok("insert --quiet -t -r 120 -s @0 /newton/prep /dev/null")
+        self.match("")
+
         # bad start time
         self.fail("insert -t -r 120 --start 'whatever' /newton/prep /dev/null")