doc: use 'symmetric difference' consistently

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

Philip Oakley committed Jul 20, 2016 at 22:10 UTC 27ac83718cc9ebc98a31eb7f17c0646d78909032
2 files changed +3 -3
Documentation/gitk.txt
+1 -1
@@ -70,7 +70,7 @@ linkgit:git-rev-list[1] for a complete list.
70
71 --left-right::
72
73 - Mark which side of a symmetric diff a commit is reachable
73 + Mark which side of a symmetric difference a commit is reachable
74 from. Commits from the left side are prefixed with a `<`
75 symbol and those from the right with a `>` symbol.
76
Documentation/rev-list-options.txt
+2 -2
@@ -225,7 +225,7 @@ excluded from the output.
225
226 --left-only::
227 --right-only::
228 - List only commits on the respective side of a symmetric range,
228 + List only commits on the respective side of a symmetric difference,
229 i.e. only those which would be marked `<` resp. `>` by
230 `--left-right`.
231 +
@@ -757,7 +757,7 @@ ifdef::git-rev-list[]
757 endif::git-rev-list[]
758
759 --left-right::
760 - Mark which side of a symmetric diff a commit is reachable from.
760 + Mark which side of a symmetric difference a commit is reachable from.
761 Commits from the left side are prefixed with `<` and those from
762 the right with `>`. If combined with `--boundary`, those
763 commits are prefixed with `-`.