[gentoo-user] fstab cleanup

[Stefan G. Weichinger]

Do I still need these lines .. especially with a modern
systemd/gnome3-environment?

->

# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
#  use almost no memory if not populated with files)
tmpfs                   /dev/shm        tmpfs
nodev,nosuid,noexec     0 0


/dev/cdrw               /media/cdrecorder       auto
user,exec,noauto,managed 0 0

?