performance/quick-read: fix warnings due to format string mismatches during invocation of gf_log.
performance/quick-read: fix warnings due to format string mismatches during invocation of gf_log.

Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 2211 ((re)introduce warnings for format string/parameter mismatch)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2211

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster