merge-strategies.txt: do not imply using copy detection is desired

Stating that the recursive strategy "currently cannot make use of
detected copies" implies that this is a technical shortcoming of the
current algorithm.  I disagree with that.  I don't see how copies could
possibly be used in a sane fashion in a merge algorithm -- would we
propagate changes in one file on one side of history to each copy of
that file when merging?  That makes no sense to me.  I cannot think of
anything else that would make sense either.  Change the wording to
simply state that we ignore any copies.

Signed-off-by: Elijah Newren <[email protected]>

Author: newren

Documentation/merge-strategies.txt

@@ -16,9 +16,9 @@ recursive::
 	causing mismerges by tests done on actual merge commits
 	taken from Linux 2.6 kernel development history.
 	Additionally this can detect and handle merges involving
-	renames, but currently cannot make use of detected
-	copies.  This is the default merge strategy when pulling
-	or merging one branch.
+	renames.  It does not make use of detected copies.  This
+	is the default merge strategy when pulling or merging one
+	branch.
 +
 The 'recursive' strategy can take the following options: