Simple fixes for the salt-call docs sequence

salt/cli/__init__.py

@@ -415,7 +415,7 @@ class SaltCall(object):
             opts['arg'] = args[1:]
         else:
             opts['fun'] = ''
-            opts['args'] = []
+            opts['arg'] = []
 
         return opts
 

salt/cli/caller.py

@@ -33,8 +33,7 @@ class Caller(object):
         '''
         Pick up the documentation for all of the modules and print it out.
         '''
-        funcs = loader.minion_mods(self.opts)
-        ret = funcs['sys.doc'](*self.opts['arg'])
+        ret = self.loader.call('sys.doc', self.opts['arg'])
         docs = {}
         for host in ret:
             for fun in ret[host]: