Log Message:
devel/ruby-power_assert: update to 1.1.3

1.1.2 (2018-06-10)

* Add example code
* Fix file descriptor leak (forgetting to close).
* Use File.open instead of Kernel#open.
* Fix LocalJumpError
* Follow up changes of Ripper.sexp in 2.6.0dev
* Prevent infinite loop when raising exception in trace event
* Fix ArgumentError when Japanese is included
* Handle character width.
* Cache offset data

1.1.3 (2018-06-24)

* pry-power_assert doesn't work
* Use benchmark-ips