Clarify that "git log x.c y.h" lists commits that touch either file

Signed-off-by: Abhijit Menon-Sen <ams@toroid.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-log.txt

diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt
index 5a58d5b..05cbac5 100644
--- a/Documentation/git-log.txt
+++ b/Documentation/git-log.txt
@@ -58,7 +58,7 @@
 	its size is not included.
 
 <paths>...::
-	Show only commits that affect the specified paths.
+	Show only commits that affect any of the specified paths.
 
 
 include::rev-list-options.txt[]