Lintian tag information: debug-package-for-multi-arch-same-pkg-not-coinstallable (type: information)

Description (from lintian-explain-tags)

The debug package appear to be containing debug symbols for a "Multi-Arch:
same" package, but the debug package itself is not "Multi-Arch: same". If
so, it is not possible to have the debug symbols for all architecture
variants of the binaries available at the same time.

Making a debug package co-installable with itself is very trivial, when
installing the debug symbols beneath:
/usr/lib/debug/.build-id/<XX>/<rest-id>.debug

dh_strip does this in debhelper compat 9. Otherwise, the expected location
of the debug symbols of a given ELF binary can be determined by using:

readelf -n <binary-elf> | \
perl -ne 'print if s,^\s*Build ID:\s*(\S\S)(\S+),/usr/lib/debug/.build-id/$1/$2.debug,'

Visibility: info
Show-Always: no
Check: group-checks

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