hacking: tell about platform-testers mailing list

* HACKING (Release procedure): Announces for alpha and beta releases
should be sent to the `platform-testers@gnu.org' mailing list.  Some
related rewording.

diff --git a/HACKING b/HACKING
index f4bd3b4..43906da 100644 (file)
--- a/HACKING
+++ b/HACKING
@@ -228,9 +228,12 @@
   - Check for link errors, fix them, recheck until convergence:
     <http://validator.w3.org/checklink>
 
-* Send announcement at least to autotools-announce@gnu.org, and
-  automake@gnu.org.  If not an alpha, announcement must also go to
-  info-gnu@gnu.org.  Copy this announcement into the NEWS feed at
+* Send the announcement at least to <autotools-announce@gnu.org> and
+  <automake@gnu.org>.  If the release is a stable one, the announcement
+  must also go to <info-gnu@gnu.org>; if it is an alpha or beta release,
+  announcement should be sent also to <platform-testers@gnu.org>, to
+  maximize the possibility of early testing on exotic or proprietary
+  systems.  Finally, copy the announcement into the NEWS feed at
   <https://savannah.gnu.org/projects/automake>.
 
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