dgit: Fix message about missing quilt cache entry

Should refer to HEAD rather than tree, since dgit needs a commit.

Closes:#884646.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/dgit b/dgit
index 33e3239..3a9b46c 100755
--- a/dgit
+++ b/dgit
@@ -4188,7 +4188,7 @@ END
 		quilt_check_splitbrain_cache($actualhead, $upstreamversion);
 	    $dgithead or fail
  "--quilt=$quilt_mode but no cached dgit view:
- perhaps tree changed since dgit build[-source] ?";
+ perhaps HEAD changed since dgit build[-source] ?";
 	    $split_brain = 1;
 	    $dgithead = splitbrain_pseudomerge($clogp,
 					       $actualhead, $dgithead,