tests/kern/ssl_sendfile: fix 'random' and 'basic' flakynessHEADmain

The read of c.sbytes needs to be synchronized with mutex.  The problem was
fixed for 'truncate' and 'grow' with 8a9508563542, but these two suffer
from the same problem.  Provide require_sbytes(), a locked wrapper around
ATF_REQUIRE() to reduce copy and paste.

Submitted by:		olivier
Differential Revision:	https://reviews.freebsd.org/D55781

0 files changed, 0 insertions, 0 deletions