doc: grammofix in git-diff-tree

Describe in present tense what the option does when it is given.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index 274d5eaba93dab2cb0374c64ea95934693c73ddf..59bdc228e4cbcf0127a4366ad7671717d89b47be 100644 (file)
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -88,7 +88,7 @@ include::pretty-options.txt[]
 
 --no-commit-id::
        'git diff-tree' outputs a line with the commit ID when
-       applicable.  This flag suppressed the commit ID output.
+       applicable.  This flag suppresses the commit ID output.
 
 -c::
        This flag changes the way a merge commit is displayed