files.lua test is failing since lua 5.4.1

[Stefan Waldhör <swa-dev-lua@...>]

For me, since lua 5.4.1 the 'files.lua' test is broken (also in the latest 5.4.2-rc1 release and the associated tests release). The log is shown below. The error occurs on Linux (Ubuntu 18.04.5 LTS using gcc 7.5.0) and Windows (using any current MSVC). Built without customization.

Is this error also happening on your latest tests using 5.4.2-rc1 and the associated tests?

Error:

***** FILE 'files.lua'*****

testing i/o

+

.......................................................................................................................lua: files.lua:303: assertion failed!

stack traceback:

[C]: in function 'assert'

files.lua:303: in main chunk