git-debrebase: convert-from-gbp: fix usage comment

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

diff --git a/git-debrebase b/git-debrebase
index 0e199b852a747d3e9d225a69d8d5bca0a1003ee5..cc51f775889c2e987e7c0f209721fc8d4b7f1fe4 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -33,7 +33,7 @@
 #    git-debrebase [<options>] stitch [--prose=<for commit message>]
 #    git-debrebase [<options>] downstream-rebase-launder-v0  # experimental
 #
 #    git-debrebase [<options>] stitch [--prose=<for commit message>]
 #    git-debrebase [<options>] downstream-rebase-launder-v0  # experimental
 #

-#    git-debrebase [<options>] convert-from-gbp <upstream-git-rev>
+#    git-debrebase [<options>] convert-from-gbp [<upstream-git-rev>]

 #    git-debrebase [<options>] convert-to-gbp
 
 # problems / outstanding questions:
 #    git-debrebase [<options>] convert-to-gbp
 
 # problems / outstanding questions: