user-manual: use pithier example commit

diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index a8bf6561e1d8059f12d1a548cf74dc4815e6a34f..7757abe62190a066b6ad8b57214b70ff3fa0f12a 100644 (file)
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -255,7 +255,7 @@ reachable from `r1` from the set of commits reachable from
 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 it the set of commits that are reachable from either one of
+It is the set of commits that are reachable from either one of
 `r1` or `r2` but not from both.
 
 Two other shorthands for naming a set that is formed by a commit