K 10
svn:author
V 3
sjg
K 8
svn:date
V 27
2019-10-24T19:50:18.476321Z
K 7
svn:log
V 247
Initialize verbosity and debug level from env

For EFI at least, we can seed the environment
with VE_VERBOSE etc.

Reviewed by:	stevek imp
Sponsored by:	Juniper Networks
MFC after:	1 week
Differential Revision:  https://reviews.freebsd.org/D22135

END