Fixes org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1;
Premature end of file.
	......
	at org.eclipse.pde.internal.core.target.TargetDefinitionPersistenceHelper.initFromXML(TargetDefinitionPersistenceHelper.java:164)

Change-Id: Ib05077d7b49d91d00c2802a450d9dc8d889edb87
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>