The server log buffer, created with `dap-start-debugging` does not keep environment variables for reexecution using `recompile`

[dudinea]

The problem

The server log buffer, created with dap-start-debugging-noexpand does not keep environment variables for re-execution using recompile

How to reproduce:

run

 (dap-start-debugging-noexpand '(:program-to-start "/bin/sh  -c 'echo FOO=$FOO'" :environment-variables (("FOO" . "BAR")) :name "test-compile-bug" :cwd "." :skip-debug-session t))

The output will be like:

-*- mode: dap-server-log; default-directory: "/usr/bin/" -*-
Debug Adapter started at Thu Sep 23 09:35:56

/bin/sh  -c 'echo FOO=$FOO'
FOO=BAR

Debug Adapter finished at Thu Sep 23 09:35:56

Press g in the log buffer, now the output will be like:

-*- mode: dap-server-log; default-directory: "/usr/bin/" -*-
Debug Adapter started at Thu Sep 23 09:38:58

/bin/sh  -c 'echo FOO=$FOO'
FOO=

Debug Adapter finished at Thu Sep 23 09:38:58

What is expected

The command is re-executed using same environment

Affected use cases

I run tests dap-java-run-test-class which uses an environment variable to pass java classpath.