Fix SC2007: Use $((..)) instead of deprecated $[..].
SC2007 removed from check_format.sh exclude list.
Change-Id: Ifd858857e461d785d6d6f101acca13c326ee637e
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/464172
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>