With this change, files are no longer "hydrated" (read: downloaded on
the fly) when calling `ls` _just_ to determine whether the files in
question have a `#!` line that makes them executable.
This commit brings the changes from
https://github.com/msys2/msys2-runtime/pull/209 to MSYS2-packages.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
