Fix non-proxy maven configuration

There is an error caused when OParent is used as an option without a
proxy configuration. This commit changes the way to print those tags.

Change-Id: I5300241b2d933832425edcd5a2544ec3f5ce6ff0
Signed-off-by: Victor Morales <victor.morales@intel.com>
diff --git a/bootstrap/vagrant-onap/lib/files/settings.xml b/bootstrap/vagrant-onap/lib/files/settings.xml
index a3b9724..862a3e8 100644
--- a/bootstrap/vagrant-onap/lib/files/settings.xml
+++ b/bootstrap/vagrant-onap/lib/files/settings.xml
@@ -9,10 +9,10 @@
 		to connect to the network. | Unless otherwise specified (by system property 
 		or command-line switch), the first proxy | specification in this list marked 
 		as active will be used. | -->
-%PROXIES_START%<proxies>
+%PROXIES_START%
 %PROXIES% %HTTP_PROXY%
 %PROXIES% %HTTPS_PROXY%
-%PROXIES_END%</proxies>
+%PROXIES_END%
 	<!-- mirrors | This is a list of mirrors to be used in downloading artifacts 
 		from remote repositories. | | It works like this: a POM may declare a repository 
 		to use in resolving certain artifacts. | However, this repository may have