Broken GAS DWARF tests

[Tom Tromey]

>>>>> "Nick" == Nick Clifton via Binutils <binutils@sourceware.org> writes:

Nick> gas/ChangeLog
Nick> 2020-07-30  Nick Clifton  <nickc@redhat.com>

Nick> 	* as.c (dwatf_level): Default to level 3 in case version is not
Nick> 	set on the command line.

I understand not wanting to pick DWARF 5 as a default, since it still
isn't fully supported in gdb; but why not DWARF 4 as the default?

Tom