Log Message:
p5-String-Util: update to 1.31.

1.31  2020-07-27 10:28:07 PDT

	- Deprecate randcrypt() as it's not secure in 2020

	- Add file_get_contents()

	- Make trim() unicode friendly

1.30  2020-07-23 14:29:05 PDT

	- Ownership transferred to Scott Baker

	- Removed undocumented function: spacepad()

	- Added a new sanitize() function

	- Deprecated some older functions: crunch(), fullchomp(), define(), and cellfill()