[PATCH 1/1] file capabilities: introduce cap_setfcap

[Serge E. Hallyn]

Here's the first patch (of several or many to come) to address some of
Andrew's comments.

Kaigai, IIUC cap_names.h will eventually be automatically updated?  (I
had to manually tweak it for testing as the new kernel sources were not
located on the test system)

thanks,
-serge