rev-list-options.txt: typo fix

Signed-off-by: NMichael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Documentation/rev-list-options.txt

@@ -165,7 +165,7 @@ limiting may be applied.
 -n 'number'::
 --max-count=<number>::
 
-	Limit the number of commits output.
+	Limit the number of commits to output.
 
 --skip=<number>::