K 10
svn:author
V 8
woodsb02
K 8
svn:date
V 27
2017-04-12T15:44:24.596193Z
K 7
svn:log
V 322
x11/lightdm: Use correct replacement for clearenv()

The previous patch to replace the Linux clearenv(3) function did not
actually clear the environment, but instead created a new environment
variable named environ with the value "NULL".

PR:		218564
Reported by:	jbeich
Obtained from:	FreeBSD env(1) command
MFH:		2017Q2

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