log: describe graph symbols in the help
I wondered what 'x' meant and didn't find it described anywhere.
--- a/mercurial/commands.py Thu Feb 20 02:38:41 2014 +0100
+++ b/mercurial/commands.py Wed Feb 12 23:44:30 2014 +0100
@@ -3905,6 +3905,12 @@
each commit. When the -v/--verbose switch is used, the list of
changed files and full commit message are shown.
+ With --graph the revisions are shown as an ASCII art DAG with the most
+ recent changeset at the top.
+ 'o' is a changeset, '@' is a working directory parent, 'x' is obsolete,
+ and '+' represents a fork where the changeset from the lines below is a
+ parent of the 'o' merge on the same same line.
+
.. note::
log -p/--patch may generate unexpected diff output for merge