K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2019-04-22T11:09:24.520485Z
K 7
svn:log
V 405
Fix `get_int_via_sysctlbyname(..)` on Jenkins

Initialize `oldlen` to the size of the value, instead of leaving the value
unitialized. Leaving it unitialized seems to work by accident on amd64 when
running 64-bit programs, but not on i386.

This matches patterns in use in other programs.

PR:		237458
Approved by:	emaste (mentor; implicit)
MFC after:	1 week
Tested on:	^/head (amd64), ^/stable/11 (i386)

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