fix Issue 22829 - [REG master] Undefined symbol stderr first referenced in file test19933.o

[ibuclaw]

Both Solaris and Bionic were still defining stdout and others in core.stdc.stdio, which cause a link failure when building without druntime.

[dlang-bot]

Thanks for your pull request, @ibuclaw!

Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	22829	regression	[REG master] Undefined symbol stderr first referenced in file test19933.o

⚠️⚠️⚠️ Warnings ⚠️⚠️⚠️

• Regression or critical bug fixes should always target the stable branch. Learn more about rebasing to stable or the D release process.

To target stable perform these two steps:

1. Rebase your branch to upstream/stable:

git rebase --onto upstream/stable upstream/master

2. Change the base branch of your PR to stable

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + druntime#3765"