diff --git a/cinder/openstack/common/log.py b/cinder/openstack/common/log.py
index 3e1e968493a..5307e41db88 100644
--- a/cinder/openstack/common/log.py
+++ b/cinder/openstack/common/log.py
@@ -62,7 +62,7 @@ _FORMAT_PATTERNS = [r'(%(key)s\s*[=]\s*[\"\']).*?([\"\'])',
                     r'([\'"].*?%(key)s[\'"]\s*:\s*u?[\'"]).*?([\'"])',
                     r'([\'"].*?%(key)s[\'"]\s*,\s*\'--?[A-z]+\'\s*,\s*u?[\'"])'
                     '.*?([\'"])',
-                    r'(%(key)s\s*--?[A-z]+\s*).*?([\s])']
+                    r'(%(key)s\s*--?[A-z]+\s*)\S+(\s*)']
 
 for key in _SANITIZE_KEYS:
     for pattern in _FORMAT_PATTERNS:
@@ -181,11 +181,11 @@ log_opts = [
     cfg.StrOpt('instance_format',
                default='[instance: %(uuid)s] ',
                help='The format for an instance that is passed with the log '
-                    'message. '),
+                    'message.'),
     cfg.StrOpt('instance_uuid_format',
                default='[instance: %(uuid)s] ',
                help='The format for an instance UUID that is passed with the '
-                    'log message. '),
+                    'log message.'),
 ]
 
 CONF = cfg.CONF
diff --git a/cinder/openstack/common/processutils.py b/cinder/openstack/common/processutils.py
index 1743106aaa0..ace43c88a8d 100644
--- a/cinder/openstack/common/processutils.py
+++ b/cinder/openstack/common/processutils.py
@@ -157,7 +157,7 @@ def execute(*cmd, **kwargs):
         attempts -= 1
         try:
             LOG.log(loglevel, 'Running cmd (subprocess): %s',
-                    ' '.join(logging.mask_password(cmd)))
+                    logging.mask_password(' '.join(cmd)))
             _PIPE = subprocess.PIPE  # pylint: disable=E1101
 
             if os.name == 'nt':
diff --git a/etc/cinder/cinder.conf.sample b/etc/cinder/cinder.conf.sample
index 7964eeb5f06..faab5bbe3a5 100644
--- a/etc/cinder/cinder.conf.sample
+++ b/etc/cinder/cinder.conf.sample
@@ -769,11 +769,11 @@
 #fatal_deprecations=false
 
 # The format for an instance that is passed with the log
-# message.  (string value)
+# message. (string value)
 #instance_format="[instance: %(uuid)s] "
 
 # The format for an instance UUID that is passed with the log
-# message.  (string value)
+# message. (string value)
 #instance_uuid_format="[instance: %(uuid)s] "
 
 # The name of a logging configuration file. This file is