In 95791be750 (doc: camelCase the i18n config variables to improve
readability, 2017-07-17), the other i18n config variables were
camel cased. However, this one instance was missed.

Camel case and monospace "i18n.commitEncoding" so that it matches the
surrounding text.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
---
 Documentation/i18n.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/i18n.txt b/Documentation/i18n.txt
index 7e36e5b55b..6c6baeeeb7 100644
--- a/Documentation/i18n.txt
+++ b/Documentation/i18n.txt
@@ -38,7 +38,7 @@ mind.
   a warning if the commit log message given to it does not look
   like a valid UTF-8 string, unless you explicitly say your
   project uses a legacy encoding.  The way to say this is to
-  have i18n.commitencoding in `.git/config` file, like this:
+  have `i18n.commitEncoding` in `.git/config` file, like this:
 +
 ------------
 [i18n]
-- 
2.30.0.478.g8a0d178c01