Updated libgrabstat to 0.12.

Updated libgrabstat to 0.12.

libstatgrab 0.12 (31 July 2005)
 * More details added to filesystem statistics.
     (Patches provided by Roman Neuhauser)
 * Rework Linux partition detection.
 * Fix compile error in network stats on Linux 2.6.
    (Patches provided by Scott Lampert)
 * Change name of duplex value in network interface stats.
    NOTE: this minor change breaks the API.
 * Manual pages for saidar, statgrab and the other tools.
 * Fix minor typo in statgrab usage output.
 * Support for Solaris 10.
 * Support for FreeBSD 7.