fix error in ARM common libs
diff --git a/libcloud/common/azure_arm.py b/libcloud/common/azure_arm.py
index 0021682..89b004f 100644
--- a/libcloud/common/azure_arm.py
+++ b/libcloud/common/azure_arm.py
@@ -116,7 +116,7 @@
         # Log in again if the token has expired or is going to expire soon
         # (next 5 minutes).
         if (time.time() + 300) >= int(self.expires_on):
-            self.get_token_from_credentials(self)
+            self.get_token_from_credentials()
 
         return super(AzureResourceManagementConnection, self) \
             .request(action, params=params,