Use ConfigParser instead of SafeConfigParser

SafeConfigParser supports interpolation on top of ConfigParser in Python 2,
and SafeConfigParser is deprecated in Python 3.2 and log warning
like " DeprecationWarning: The SafeConfigParser class has been renamed to
ConfigParser in Python 3.2. This alias will be removed in future versions.
Use ConfigParser directly instead."
So we can use ConfigParser if we don't need interpolation.

Change-Id: If210bd1322df96c0c8aea1f257148dc46affb422
Closes-Bug: #1618666
diff --git a/tempest/cmd/init.py b/tempest/cmd/init.py
index ba1f1fa..f577d9b 100644
--- a/tempest/cmd/init.py
+++ b/tempest/cmd/init.py
@@ -93,7 +93,7 @@
             testr_conf_file.write(testr_conf)
 
     def get_configparser(self, conf_path):
-        config_parse = moves.configparser.SafeConfigParser()
+        config_parse = moves.configparser.ConfigParser()
         config_parse.optionxform = str
         # get any existing values if a config file already exists
         if os.path.isfile(conf_path):
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index c36c9be..fdeacc2 100644
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -373,7 +373,7 @@
     outfile = sys.stdout
     if update:
         conf_file = _get_config_file()
-        CONF_PARSER = moves.configparser.SafeConfigParser()
+        CONF_PARSER = moves.configparser.ConfigParser()
         CONF_PARSER.optionxform = str
         CONF_PARSER.readfp(conf_file)