replaced println with log Closes #12338 (#12348)

* replaced println with log Closes #12338

* fixed println

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update utils/frame/benchmarking-cli/src/pallet/command.rs

* Apply suggestions from code review

* ".git/.scripts/fmt.sh" 1

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: command-bot <>