--- a/mercurial/vfs.py Fri Jun 30 03:45:59 2017 +0200
+++ b/mercurial/vfs.py Fri Jun 30 03:46:00 2017 +0200
@@ -550,7 +550,7 @@
# Windows defaults to a limit of 512 open files. A buffer of 128
# should give us enough headway.
maxqueue = ui.configint('worker', 'backgroundclosemaxqueue')
- threadcount = ui.configint('worker', 'backgroundclosethreadcount', 4)
+ threadcount = ui.configint('worker', 'backgroundclosethreadcount')
ui.debug('starting %d threads for background file closing\n' %
threadcount)