Reduce verbosity level when debug is true

Keystone is experiencing memecached timeouts during tempest tests in
CI, and the memcached log is in excess of 20Mbytes. There will be a lot
of write pressure on this log during tempest tests and this patch reduces
the debug log level in an attempt to increase test reliability.

Change-Id: I7db0eb361fc6f09ce64690be2018bf8ed8204e0c

templates/memcached.conf.debian.j2

@@ -2,7 +2,7 @@
 
 -d
 {% if debug | bool %}
--vvv
+-vv
 {% else %}
 -v
 {% endif %}

templates/memcached.gentoo.j2

@@ -1,6 +1,6 @@
 # {{ ansible_managed }}
 {% if debug | bool %}
-  {% set _verbosity = '-vvv' %}
+  {% set _verbosity = '-vv' %}
 {% else %}
   {% set _verbosity = '-v' %}
 {% endif %}

templates/memcached.redhat.j2

@@ -1,7 +1,7 @@
 # {{ ansible_managed }}
 
 {% if debug | bool %}
-  {% set _verbosity = '-vvv' %}
+  {% set _verbosity = '-vv' %}
 {% else %}
   {% set _verbosity = '-v' %}
 {% endif %}

templates/memcached.suse.j2

@@ -1,7 +1,7 @@
 # {{ ansible_managed }}
 
 {% if debug | bool %}
-  {% set _verbosity = '-vvv' %}
+  {% set _verbosity = '-vv' %}
 {% else %}
   {% set _verbosity = '-v' %}
 {% endif %}