git-debrebase: document that breakwater merges always have single parent

multi-orig upstreams will get a separate commit merging the upstream stuff

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

diff --git a/git-debrebase b/git-debrebase
index 4ca30eb53e6ea3d518258fb358356dc92f5098f7..5808cf33f7f1b702f29c5e57b1ef01e707a0428f 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -283,7 +283,7 @@ sub calculate_committer_authline () {
 #
 #   BreakwaterUpstreamMerge
 #     has additional entry in classification result
-#       OrigParents = [ subset of Parents ]
+#       OrigParents = [ subset of Parents ]  # singleton list
 
 sub classify ($) {
     my ($objid) = @_;