[PATCH] Documentation/config: clarify the meaning of submodule.<name>.update

[Stefan Beller <sbeller@google.com>]

With more commands (that potentially change a submodule) paying attention
to submodules as well as the recent discussion[1] on submodule.<name>.update,
let's spell out that submodule.<name>.update is strictly to be used
for configuring the "submodule update" command and not to be obeyed
by other commands.

These other commands usually have a strict meaning of what they should
do (i.e. checkout, reset, rebase, merge) as well as have their name
overlapping with the modes possible for submodule.<name>.update.

[1] https://public-inbox.org/git/4283F0B0-BC1C-4ED1-8126-7E512D84484B@gmail.com/

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 Documentation/config.txt | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index dc4e3f58a2..b0ded777fe 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -3085,10 +3085,9 @@ submodule.<name>.url::
 	See linkgit:git-submodule[1] and linkgit:gitmodules[5] for details.
 
 submodule.<name>.update::
-	The default update procedure for a submodule. This variable
-	is populated by `git submodule init` from the
-	linkgit:gitmodules[5] file. See description of 'update'
-	command in linkgit:git-submodule[1].
+	The method how a submodule is updated via 'git submodule update'.
+	It is populated by `git submodule init` from the linkgit:gitmodules[5]
+	file. See description of 'update' command in linkgit:git-submodule[1].
 
 submodule.<name>.branch::
 	The remote branch name for a submodule, used by `git submodule
-- 
2.14.0.rc0.3.g6c2e499285