* make more standard libraries work with `nimPreviewSlimSystem`
* typo
* part two
* Delete specutils.nim
* fixes more tests
* more fixes
* fixes tests
* fixes three more tests
* add formatfloat import
* fix
* last
* Revert "followup #17398: `getTempDir`, `getConfigDir` now do not have trailing DirSep (#17402)"
This reverts commit 2356d0603f.
* Revert "fix #17393 getHomeDir and expandTilde should not include trailing `/` (#17398)"
This reverts commit bebf2ce24a.
* fix test