Fix generic_proc_open() of command 'nstat' and 'rtacct'

Fix a bug of generic_proc_open(), so environment variables
(e.g. PROC_NET_SNMP, PROC_NET_RTACCT) can be used to specify procfile.

Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
2 files changed