K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2015-09-29T12:02:23.078019Z
K 7
svn:log
V 418
std: it is important that func name is never an empty string

otherwise DTRACE_ANCHORED() returns false and that makes stack()
insert a bogus frame at the top.
For example:
dtrace -n 'test:dtrace_test::sdttest { stack(); }

This change is not really a solution, but just a work-around.
The real solution is to record the probe's call site and to use
that for resolving a function name.

PR:		195222
MFC after:	22 days

END