debugdeltachain: document the possible value for deltatype
So that one can understand what is displayed by the command.
--- a/mercurial/debugcommands.py Wed May 18 17:22:32 2022 +0100
+++ b/mercurial/debugcommands.py Wed May 18 17:29:03 2022 +0100
@@ -764,6 +764,12 @@
:``chainlen``: delta chain length to this revision
:``prevrev``: previous revision in delta chain
:``deltatype``: role of delta / how it was computed
+ - base: a full snapshot
+ - snap: an intermediate snapshot
+ - p1: a delta against the first parent
+ - p2: a delta against the second parent
+ - prev: a delta against the previous revision
+ - other: a delta against an arbitrary revision
:``compsize``: compressed size of revision
:``uncompsize``: uncompressed size of revision
:``chainsize``: total size of compressed revisions in chain