doc: Add diff.unified to the hgrc docs.
--- a/doc/hgrc.5.txt Wed Jan 26 18:19:49 2011 +0800
+++ b/doc/hgrc.5.txt Fri Feb 11 17:23:24 2011 +0800
@@ -330,8 +330,8 @@
``diff``
""""""""
-Settings used when displaying diffs. They are all Boolean and
-defaults to False.
+Settings used when displaying diffs. Everything except for ``unified`` is a
+Boolean and defaults to False.
``git``
Use git extended diff format.
@@ -345,6 +345,8 @@
Ignore changes in the amount of white space.
``ignoreblanklines``
Ignore changes whose lines are all blank.
+``unified``
+ Number of lines of context to show.
``email``
"""""""""