[PATCH maintainer-tools 3/3] dim.rst: update CONTRIBUTING instructions

[Eric Engestrom]

Suggest using git-config instead of a flag on format-patch.
While at it, use the more common "PATCH foo" subject prefix.

Signed-off-by: Eric Engestrom <eric.engestrom at imgtec.com>
---
 dim.rst | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dim.rst b/dim.rst
index b99248e..c650317 100644
--- a/dim.rst
+++ b/dim.rst
@@ -476,10 +476,11 @@ CONTRIBUTING
 ============
 
 Submit patches for any of the maintainer tools to the
-intel-gfx at lists.freedesktop.org mailing list with [maintainer-tools PATCH]
+intel-gfx at lists.freedesktop.org mailing list with [PATCH maintainer-tools]
 prefix. Use::
 
-  $ git format-patch --subject-prefix="maintainer-tools PATCH"
+  $ git config sendemail.to intel-gfx at lists.freedesktop.org
+  $ git config format.subjectprefix 'PATCH maintainer-tools'
 
 for that. Please make sure your patches pass the build and self tests by
 running::
-- 
Cheers,
  Eric