fix typo in umount2() emulation of umount()
fix typo in umount2() emulation of umount()

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