Various pep8/HACKING fixes for Cinder.

Fix some ordering/pep8/hacking issues in preperation for re-enabling
full pep8/HACKING checks in tox.

Change-Id: I7151ac73d1ace5d98046580e6d1c6a1dcc6c4cef

cinder/db/sqlalchemy/migration.py

@@ -26,9 +26,9 @@ from cinder import flags
 from cinder.openstack.common import log as logging
 
 
-import sqlalchemy
 import migrate
 from migrate.versioning import util as migrate_util
+import sqlalchemy
 
 
 LOG = logging.getLogger(__name__)

cinder/utils.py

@@ -317,8 +317,8 @@ class SSHPool(pools.Pool):
             transport.set_keepalive(self.conn_timeout)
             return ssh
         except Exception as e:
-            msg = "Error connecting via ssh: %s" % e
-            LOG.error(_(msg))
+            msg = _("Error connecting via ssh: %s") % e
+            LOG.error(msg)
             raise paramiko.SSHException(msg)
 
     def get(self):

cinder/volume/san/san.py

@@ -122,11 +122,11 @@ class SanISCSIDriver(ISCSIDriver):
                     except Exception as e:
                         LOG.error(e)
                         greenthread.sleep(random.randint(20, 500) / 100.0)
-                raise paramiko.SSHException(_("SSH Command failed after '%r' "
-                                              "attempts: '%s'"
-                                              % (total_attempts, command)))
+                raise paramiko.SSHException(_("SSH Command failed after "
+                                              "'%(total_attempts)r' attempts"
+                                              ": '%(command)s'"), locals())
         except Exception as e:
-            LOG.error(_("Error running ssh command: %s" % command))
+            LOG.error(_("Error running ssh command: %s") % command)
             raise e
 
     def ensure_export(self, context, volume):