minor stuff

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@48722 15284696-431f-4ddb-bdfa-cd5b030d7da7

doc/howto_release.txt

@@ -126,7 +126,7 @@ Contents
       - grass$MAJOR$MINOR/main.inc
       - devel/grasshist.html
       - devel/grassreleases.html
-      - devel/svntags.inc (add tag)
+      - devel/svntags.inc (add tag): echo $RELEASETAG
 
      write announcement
       - store in trac: http://trac.osgeo.org/grass/wiki/Release/6.XX.YY-News