[PATCH www] CONTRIBUTING: fix `git config` suggestion

Cole Helbling
2020-05-08T23:53:52Z

format-patch is the component that adds to the prefix, not send-email.
---
CONTRIBUTING | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CONTRIBUTING b/CONTRIBUTING
index 2f1f8b2..7ec8fba 100644
--- a/CONTRIBUTING
+++ b/CONTRIBUTING
@@ -23,8 +23,8 @@ automatically prepend a prefix to the subject line of every patch
message sent by it in a given repository. You can configure it by
running the following command in this Git repository:

- git config sendemail.subjectPrefix "PATCH www"
+ git config format.subjectPrefix "PATCH www"

From now on, git-send-email(1) will automatically add "[PATCH www]" to
the start of every patch sent for this repository, instead of the
-default "[PATCH]".
\ No newline at end of file
+default "[PATCH]".
--
2.26.2