[gimp] devel-docs/release-howto.txt: mention to use "cp" not "mv" on the server

[Michael Natterer <mitch src gnome org>]

commit 2df281a2197b3a3f9389dc5cfd686663a5d97c69
Author: Michael Natterer <mitch gimp org>
Date:   Tue Aug 22 20:07:02 2017 +0200

    devel-docs/release-howto.txt: mention to use "cp" not "mv" on the server

 devel-docs/release-howto.txt |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/devel-docs/release-howto.txt b/devel-docs/release-howto.txt
index 22b2e9e..2ba1ff3 100644
--- a/devel-docs/release-howto.txt
+++ b/devel-docs/release-howto.txt
@@ -104,7 +104,10 @@
          file around.
 
      [ ] Copy the tarball and the .md5 file to its final destination
-         in the download area (/srv/ftp/pub/gimp/v2.x).
+         in the download area (/srv/ftp/pub/gimp/v2.x). Really use
+         "cp" not "mv" or SELinux will make the uploaded file
+         unreadable to the web server unless some obscure status bit
+         is toggled.
 
      [ ] Update the 0.0_LATEST-IS- file in the corresponding directory
          on the download server.