[releng] Correct exported package visibility
diff --git a/plugins/org.eclipse.m2m.qvt.oml.tools.coverage.startup/META-INF/MANIFEST.MF b/plugins/org.eclipse.m2m.qvt.oml.tools.coverage.startup/META-INF/MANIFEST.MF
index 067f87f..bf45267 100644
--- a/plugins/org.eclipse.m2m.qvt.oml.tools.coverage.startup/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.m2m.qvt.oml.tools.coverage.startup/META-INF/MANIFEST.MF
@@ -13,4 +13,4 @@
 Bundle-ActivationPolicy: lazy
 Bundle-Localization: plugin
 Automatic-Module-Name: org.eclipse.m2m.qvt.oml.tools.coverage.startup
-Export-Package: org.eclipse.m2m.qvt.oml.tools.coverage.startup
+Export-Package: org.eclipse.m2m.qvt.oml.tools.coverage.startup;x-internal:=true