bug#30094: patch for adding external lang support

There is a left-over simple-format statement which should be removed.

bug#30094: patch for adding external lang support

Here is a patch against 2.2.4. It compiled and passed "make check". Still to go: some test-suite scripts. --- module/system/base/compile.scm-orig 2016-08-01 04:32:31.0 -0700 +++ module/system/base/compile.scm 2018-09-04 06:27:53.056330281 -0700 @@ -28,6 +28,7 @@ #:use-module (ic