lib.sh: add fe_ which is fx_ but err on find

In the mk script, we need fx_ to not return errors on the
find command, since it's searching a bunch of directories
where some of them may not exist.

All other instances where fx_ is used, must return an error
if the directory being searched doesn't exist.

For this, fe_() is introduced, which does the same as fx_
but with this much stricter check.

Signed-off-by: Leah Rowe <leah@libreboot.org>

0 files changed, 0 insertions, 0 deletions