find . -name '.git' -type d -prune \
    | rev | cut -d '/' -f2- | rev | tr '\n' '\0' \
    | xargs -0 -n1 -I% bash -c 'echo -n "%..."; cd "%"; git fsck 2>/dev/null 1>&2; if [ $? -eq "0" ]; then printf "\e[32mPASS\e[39m\n"; else printf "\e[31mFAIL\e[39m\n"; fi'