K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2017-04-11T08:29:12.950631Z
K 7
svn:log
V 249
Remove debugging printf.

Instead, issue a diagnostic and return appropriate error if
ncl_flush() was unable to clean buffer queue after the specified
number or retries.

Reviewed by:	rmacklem
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks

END