Changing according to styling check done by ShellCheck.
Removing from check_format.sh exclusion list:
SC2236 - Use -n instead of ! -z
SC2070 - -n doesn't work with unquoted arguments. Quote or use [[ ]]
Change-Id: Ia9d645b9d0ce31b67c4de682395cf36f4ddc8d1f
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463180
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>