Refactor object storage credentials.

Author: Fernando Ojeda

SoftLayer/CLI/object_storage/credential/delete.py

@@ -4,7 +4,7 @@
 import click
 
 import SoftLayer
-from SoftLayer.CLI import environment, exceptions
+from SoftLayer.CLI import environment
 
 
 @click.command()

SoftLayer/CLI/object_storage/credential/limit.py

@@ -12,7 +12,7 @@
 @click.argument('identifier')
 @environment.pass_env
 def cli(env, identifier):
-    """ Credential limits for this IBM Cloud Object Storage account."""
+    """Credential limits for this IBM Cloud Object Storage account."""
 
     mgr = SoftLayer.ObjectStorageManager(env.client)
     limit = mgr.limit_credential(identifier)