New egg: SRFI-48: Intermediate Format Strings

[noosphere]

I would like to submit for publication a new egg:

  SRFI-48: Intermediate Format Strings

Its documentation can be found here: [1]

Its release-info is here: [2]

test-new-egg gives it a clean bill of health.

--Sergey

[1] - https://wiki.call-cc.org/eggref/5/srfi-48

[2] - https://github.com/diamond-lizard/srfi-48/raw/main/release-info