mmatuska/zfs-stats — pull request #4 by b2gills (2014-01-19 19:50:03+00:00)
Title: prevent hex() from warning on the header of kldstat in zfs-stats

`kldstat` returns a header line so `hex()` emits a warning.

Simply skipping lines that don't have `0x` on them is enough to prevent this.