There's a closed pull request on the void-packages repository

glibc: restore debug symbols
https://github.com/void-linux/void-packages/pull/30216

Description:
commit b5a52cc50a13 ("glibc: do not strip shlibs to make valgrind work
ootb.") had added the main glibc shared libraries in the nostrip list so
that valgrind could work out of the box. As mentioned in that commit
message, this had the side-effect of making the glibc-dbg package lack
the debug symbols for all those libraries.

Restore all glibc debug symbol generation by removing all those shared
libraries from the nostrip list, so that symbolic debugging of glibc is
made possible.

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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