Merge "Fix command parsing on legacy api version" into stable/stein

zunclient/common/utils.py

@@ -203,6 +203,8 @@ def list_availability_zones(zones):
 def parse_command(command):
     output = []
     if command:
+        if isinstance(command, six.string_types):
+            command = [command]
         for c in command:
             c = '"' + c + '"'
             output.append(c)