ignore unexternalized bundlles not from WTP -- fix typo

tests/org.eclipse.wtp.releng.tests/src/org/eclipse/wtp/layout/tests/config.properties

@@ -434,13 +434,11 @@ org.eclipse.persistence.dbws META-INF/MANIFEST\.MF, \
   
 org.eclipse.persistence.oracle META-INF/MANIFEST\.MF, \
   about\.html
-
   
 org.eclipse.persistence.antlr META-INF/MANIFEST\.MF, \
   about\.html
-  
    
-org.eclipse.persistence.jpa META-INF/MANIFEST\\.MF, \\
+org.eclipse.persistence.jpa META-INF/MANIFEST\.MF, \
   about\\.html
 
 javax.persistence META-INF/MANIFEST\.MF, \