Documentation: minor grammar fix for "git apply"

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-apply.txt

diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt
index bae3e7b..9ec38f9 100644
--- a/Documentation/git-apply.txt
+++ b/Documentation/git-apply.txt
@@ -119,7 +119,7 @@
 
 --no-add::
 	When applying a patch, ignore additions made by the
-	patch.  This can be used to extract common part between
+	patch.  This can be used to extract the common part between
 	two files by first running `diff` on them and applying
 	the result with this option, which would apply the
 	deletion part but not addition part.