[PATCH] sequencer: fix error message on failure to copy SQUASH_MSG

[Oswald Buddenhagen <oswald.buddenhagen@gmx.de>]

The message talked about renaming, while the actual action is copying.
This was introduced by 6e98de72c ("sequencer (rebase -i): add support
for the 'fixup' and 'squash' commands", 2017-01-02).

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

---
i didn't try verifying whether the action shouldn't be actually be a
move, as i'm getting lost in this forest of files.

Cc: Johannes Schindelin <johannes.schindelin@gmx.de>
Cc: Phillip Wood <phillip.wood123@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>

---
totally on a tangent, does someone feel like teaching copy_file() to try
ioctl(FICLONE) (i.e., reflink) first?
---
 sequencer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sequencer.c b/sequencer.c
index a66dcf8ab2..2f3d7d4eee 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -2320,7 +2320,7 @@ static int do_pick_commit(struct repository *r,
 			const char *dest = git_path_squash_msg(r);
 			unlink(dest);
 			if (copy_file(dest, rebase_path_squash_msg(), 0666)) {
-				res = error(_("could not rename '%s' to '%s'"),
+				res = error(_("could not copy '%s' to '%s'"),
 					    rebase_path_squash_msg(), dest);
 				goto leave;
 			}
-- 
2.40.0.152.g15d061e6df