[PATCH v2] help/config: mention ui.usehttp2

[dsp at php.net]

# HG changeset patch
# User David Soria Parra <dsp at php.net>
# Date 1308705714 -7200
# Branch stable
# Node ID bec9045c41a7fc72df757c22f46c8360bb2a8ff0
# Parent  f503e243511fdfc742a1d845d3d5d4830b58c18a
help/config: mention ui.usehttp2

with suggestions from Steven Brown and Augie Fackler.

diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
--- a/mercurial/help/config.txt
+++ b/mercurial/help/config.txt
@@ -1084,6 +1084,14 @@
     on all exceptions, even those recognized by Mercurial (such as
     IOError or MemoryError). Default is False.
 
+``usehttp2``
+   Use the experimental new HTTP handler that is built in to Mercurial.
+   It adds more reliable proxy support and optimizes pushes to HTTP
+   servers that run at least Mercurial 1.9 and require authentication. The
+   handler might become the default HTTP handler in upcoming Mercurial
+   versions. Note that this feature is experimental and may cause
+   errors. Default is False.
+
 ``username``
     The committer of a changeset created when running "commit".
     Typically a person's name and email address, e.g. ``Fred Widget