avoid a situation where attempts to read arbitrary files trigger
sandbox violations.
svn path=/main/trunk/; revision=9085
SANDBOX_PREDICT="${SANDBOX_PREDICT}:/proc/self/maps:/dev/console:/dev/random"
export SANDBOX_PREDICT="${SANDBOX_PREDICT}:${PORTAGE_PYM_PATH}:${PORTAGE_DEPCACHEDIR}"
export SANDBOX_WRITE="${SANDBOX_WRITE}:/dev/shm:/dev/stdout:/dev/stderr:${PORTAGE_TMPDIR}"
-export SANDBOX_READ="${SANDBOX_READ}:/dev/shm:/dev/stdin:${PORTAGE_TMPDIR}"
+export SANDBOX_READ="${SANDBOX_READ}:/:/dev/shm:/dev/stdin:${PORTAGE_TMPDIR}"
# Don't use sandbox's BASH_ENV for new shells because it does
# 'source /etc/profile' which can interfere with the build
# environment by modifying our PATH.