obsolete: improve allsuccessors doc string
The fact original nodes are also yield is not obvious. We update the docstring
to highlight it.
--- a/mercurial/obsolete.py Mon Dec 23 13:32:03 2013 -0800
+++ b/mercurial/obsolete.py Mon Dec 23 13:33:21 2013 -0800
@@ -440,7 +440,8 @@
Some successors may be unknown locally.
- This is a linear yield unsuited to detecting split changesets."""
+ This is a linear yield unsuited to detecting split changesets. It includes
+ initial nodes too."""
remaining = set(nodes)
seen = set(remaining)
while remaining: