tree 71ef421f5dbc691748d259a3cc80d65e2cc48c2f
parent 24c12b79235ca8187f6652900c1d25a10cbdac71
author Chen Gang <gang.chen.5i5j@gmail.com> 1398129154 +0800
committer Michael Tokarev <mjt@tls.msk.ru> 1398660931 +0400

vl: avoid closing stdout with 'writeconfig'

'writeconfig' supports output to stdout (with '-'); when that happens,
we must not close stdout, or further command line options that also use
stdout will be impacted. (Although 'writeconfig' was copied from
'readconfig', the latter does not have the problem because it does not
support reading from '-')

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>