Added error message when reboot and extra params are passed, and added better…

Added error message when reboot and extra params are passed, and added better boolean parsing on reboot

library/cron

@@ -233,7 +233,7 @@ def main():
             day=dict(default='*'),
             month=dict(default='*'),
             weekday=dict(default='*'),
-            reboot=dict(required=False, default=False)
+            reboot=dict(required=False, default=False, choices=BOOLEANS)
         )
     )
 
@@ -246,9 +246,13 @@ def main():
     day        = module.params['day']
     month      = module.params['month']
     weekday    = module.params['weekday']
-    reboot     = module.params['reboot']
+    reboot     = module.boolean(module.params.get('reboot', False))
     do_install = module.params['state'] == 'present'
     changed    = False
+
+    if reboot and (len(set([minute, hour, day, month, weekday, '*'])) != 1):
+        module.fail_json(msg="You must specify either reboot=True or any of minute, hour, day, month, weekday")
+
     if reboot:
         job = "@reboot %s" % (job)
     else: