- Revert _dl_exit touch-up.   It breaks on arches that don't define proper/complete/nice syscall facilities.
- Revert _dl_exit touch-up.
  It breaks on arches that don't define proper/complete/nice syscall facilities.

foss-for-synopsys-dwc-arc-processors/uClibc,hjl-tools/uClibc,hwoarang/uClibc,skristiansson/uClibc-or1k,waweber/uclibc-clang,mephi42/uClibc,hwoarang/uClibc,wbx-github/uclibc-ng,kraj/uclibc-ng,czankel/xtensa-uclibc,majek/uclibc-vx32,foss-xtensa/uClibc,skristiansson/uClibc-or1k,groundwater/uClibc,ddcc/klee-uclibc-0.9.33.2,hwoarang/uClibc,ffainelli/uClibc,hjl-tools/uClibc,ndmsystems/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,ndmsystems/uClibc,mephi42/uClibc,OpenInkpot-archive/iplinux-uclibc,ffainelli/uClibc,waweber/uclibc-clang,hjl-tools/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,ffainelli/uClibc,atgreen/uClibc-moxie,brgl/uclibc-ng,skristiansson/uClibc-or1k,wbx-github/uclibc-ng,czankel/xtensa-uclibc,groundwater/uClibc,mephi42/uClibc,m-labs/uclibc-lm32,gittup/uClibc,ysat0/uClibc,kraj/uclibc-ng,atgreen/uClibc-moxie,gittup/uClibc,foss-xtensa/uClibc,atgreen/uClibc-moxie,ddcc/klee-uclibc-0.9.33.2,hjl-tools/uClibc,waweber/uclibc-clang,ndmsystems/uClibc,kraj/uClibc,OpenInkpot-archive/iplinux-uclibc,majek/uclibc-vx32,gittup/uClibc,ffainelli/uClibc,groundwater/uClibc,kraj/uClibc,OpenInkpot-archive/iplinux-uclibc,groundwater/uClibc,wbx-github/uclibc-ng,kraj/uClibc,ndmsystems/uClibc,gittup/uClibc,skristiansson/uClibc-or1k,ysat0/uClibc,ysat0/uClibc,kraj/uclibc-ng,atgreen/uClibc-moxie,m-labs/uclibc-lm32,ffainelli/uClibc,ddcc/klee-uclibc-0.9.33.2,ysat0/uClibc,waweber/uclibc-clang,ddcc/klee-uclibc-0.9.33.2,kraj/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,majek/uclibc-vx32,m-labs/uclibc-lm32,wbx-github/uclibc-ng,hwoarang/uClibc,brgl/uclibc-ng,majek/uclibc-vx32,foss-xtensa/uClibc,hjl-tools/uClibc,brgl/uclibc-ng,m-labs/uclibc-lm32,czankel/xtensa-uclibc,czankel/xtensa-uclibc,mephi42/uClibc,brgl/uclibc-ng,OpenInkpot-archive/iplinux-uclibc,foss-xtensa/uClibc,groundwater/uClibc