fix load error with EAGAIN

This is a fix related to the following issue.
rails/rails#33464

Not only in rails apps, some little ruby app with only 2 or 3 ruby
files reproduce the problem during many years.

When I edit linux ruby files by vs code via samba on windows, and
then I execute the ruby files on linux, "require_relative" will
sometimes not work properly.

My solution is to wait a monument if the required relative file is
busy.

0 files changed, 0 insertions, 0 deletions