Fix fstest for LINUX

modified:   ../../../tests/posix-test-suite/pjd-fstest-20080816/tests/link/02.t
modified:   ../../../tests/posix-test-suite/pjd-fstest-20080816/tests/misc.sh
modified:   ../../../tests/posix-test-suite/pjd-fstest-20080816/tests/mkfifo/02.t