It's always garbage.

At this point we seem to reasonably handle all product names that come
from hwdb.

The product names are generally of rather poor quality. The product name
is no place to enumerate product capabilities, the bus it's attached on
and similar nonsense.

At this point the test suite also contains all network vendor names
known to hwdb.

If there's a [<string>] that survived the substitution, then the string
is supposed to be a short form that is generally preferrable.

That's great in theory, but actually it's rather often pure garbage for
product names. Let's prefer it just for vendors and provide an option to
drop it (will be useful for fixing up product names).

It's always useless.

Along with known correctly fixed up vendor names.

The hwdb generally contains the strings of rather poor quality,
especially when it comes to sensibly presenting them to the user and
they need various cleanups.

While the following patches add fixups, this one splits out vendor
fixups, because it turns out that a different set of fixups is needed
than for products.

Fixes: 4d1f090aedf05c0e2955d431638e311d1e18a52f

Register empty "NMClient" and "NetworkManager" GIR modules as soon as libnm is
loaded witch gnome-introspection. This prevents the real modules from being
loaded because they would in turn load libnm-glib and abort() and crash.

In particular this prevents the GNOME shell from crashing with
libnm-glib abort and allows gracefully disabling the extensions which
use the obsolete library.

Test:

  $ cat test.js
  const NM = imports.gi.NM;
  print (NM.SecretAgentGetSecretsFlags.ALLOW_INTERACTION);

  const NMClient = imports.gi.NMClient;
  print (NMClient.SecretAgentGetSecretsFlags.ALLOW_INTERACTION);

Before:

  $ gjs test.js
  1

  (gjs:16253): libnm-util-ERROR **: libnm symbols detected; Mixing libnm with libnm-util/libnm-glib is not supported
  Trace/breakpoint trap (core dumped)
  $

After:

  $ gjs test.js
  1
  Gjs-Message: JS WARNING: [test.js 5]: reference to undefined property "SecretAgentGetSecretsFlags"

  (gjs:16228): Gjs-WARNING **: JS ERROR: TypeError: NMClient.SecretAgentGetSecretsFlags is undefined
  @test.js:5:1

  JS_EvaluateScript() failed