test suite "Comparing Output ...." display filenames when -debug flag is set?

[J. Grant]

Hello,

Could the test suite display the filenames it is diffing when it
displays "Comparing Output ...." and -debug is passed please?

I am trying to work out which log files correspond with a particular .mk
file and am not completely sure.

Could the .base files also be kept when -debug is passed please?

I see export.mk.1 has "DIFFERENT OUTPUT", but the export.base.1 and
export.log.1 are missing.  export.base.6 and export.diff.6 however are
still present..

I am looking at mingw msys test "work" dir files.

Kind regards
JG