debug/io-stats: io stats filenames contain garbage

As dict_unserialize does not null terminate the value,
using snprintf adds garbage characters to the buffer
used to create the filename.
The code also used this->name in the filename which
will be the same for all bricks for a volume. The
files were thus overwritten if a node contained
multiple bricks for a volume. The code now uses
the conf->unique instead if available.

Change-Id: I2c72534b32634b87961d3b3f7d53c5f2ca2c068c
fixes: bz#1640392
Signed-off-by: N Balachandran <nbalacha@redhat.com>
(cherry picked from commit 219cd649fdbd7bfd6c2268a0a4f66bcc15918e31)

0 files changed, 0 insertions, 0 deletions