Makerules: add a do_sed command
Makerules: add a do_sed command

Signed-off-by: Austin Foxley <65462a1d10372f5df6b6641242ca623823c369f3@cetoncorp.com>

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