doc: revisions - name the left and right sides

The terms left and right side originate from the symmetric
difference. Name them there.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index d85e3033646faec23b23065cbd78436aca508acf..9fcad8a4400ca0be5c5d10909a7b01528efc4a3b 100644 (file)
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -255,7 +255,7 @@ A similar notation 'r1\...r2' is called symmetric difference
 of 'r1' and 'r2' and is defined as
 'r1 r2 --not $(git merge-base --all r1 r2)'.
 It is the set of commits that are reachable from either one of
-'r1' or 'r2' but not from both.
+'r1' (left side) or 'r2' (right side) but not from both.
 
 In these two shorthands, you can omit one end and let it default to HEAD.
 For example, 'origin..' is a shorthand for 'origin..HEAD' and asks "What