app-emulation/wine-vanilla: Add maintainer description/warning

Original edits should not take place in ::gentoo.  All development
takes place in ::wine where many more versions than are kept in ::gentoo
are kept in sync.

Package-Manager: Portage-2.3.19, Repoman-2.3.6

app-emulation/wine-vanilla/metadata.xml

@@ -4,6 +4,10 @@
 	<maintainer type="project">
 		<email>[email protected]</email>
 		<name>Wine</name>
+		<description>
+			This package must be kept in sync with repo/proj/wine repository.
+			Any changes need to be run past the maintainer to ensure the two repositories are kept in sync.
+		</description>
 	</maintainer>
 	<longdescription>
 Wine is an Open Source implementation of the Windows API on top of X and Unix.