pcp updates - fine tuning last commit

[Ken McDonell <kenj@xxxxxxxxxxxxxxxx>]

Changes committed to git://oss.sgi.com/kenj/pcp.git dev

 src/libpcp/src/interp.c |   12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

commit b1fa8d138d2184e578ba66723968d8b961c05140
Author: Ken McDonell <kenj@xxxxxxxxxxxxxxxx>
Date:   Thu Jun 19 11:52:19 2014 +1000

    libpcp/interp.c - modify read cache cleaning in __pmFreeInterpData()

    Instead of hand crafted code, use the existing __pmLogCacheClear()
    routine ...  with the added benefit of the this part now being
    thread safe!