[PATCH 1 of 4] configitems: register the 'profiling.output' config

[Boris Feld]

# HG changeset patch
# User Boris Feld <boris.feld at octobus.net>
# Date 1498787035 -7200
#      Fri Jun 30 03:43:55 2017 +0200
# Node ID 49eb5157513e5870b1842beb44420d00f334d133
# Parent  7d2f71b7bc31acf1290ad3211481c5c77345a1da
# EXP-Topic config.register.profiling
configitems: register the 'profiling.output' config

diff -r 7d2f71b7bc31 -r 49eb5157513e mercurial/configitems.py
--- a/mercurial/configitems.py	Sun Oct 01 16:46:02 2017 +0100
+++ b/mercurial/configitems.py	Fri Jun 30 03:43:55 2017 +0200
@@ -335,6 +335,9 @@
 coreconfigitem('profiling', 'nested',
     default=0,
 )
+coreconfigitem('profiling', 'output',
+    default=None,
+)
 coreconfigitem('profiling', 'sort',
     default='inlinetime',
 )