gethrtime returns 0.

Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=2728

Reported by Martin Nilsson, IDA nilsson@pike.ida.liu.se

On estonia (solaris i86) and megalon (solaris sun4):
Pike v7.3 release 13 running Hilfe v2.0 (Incremental Pike Frontend)
> gethrtime();
Result: 0
> gethrtime();
Result: 0

Note that the gethrtime test in the testsuit works. The gethrtime problem is not confined to hilfe though.