testers.hasPkgConfigModules: Simplify derivation name, use package name

# Static arguments

{ lib, runCommand, pkg-config }:

let

  genTestName = moduleNames:

    # An overly long name made the progress bar weird and distraction, and same

    # for the build log prefix.

    if lib.length moduleNames > 1 then

      "modules"

    else

      lib.head moduleNames;

in

# Tester arguments

{ package,

  moduleNames ? package.meta.pkgConfigModules,

  testName ? "check-pkg-config-${genTestName moduleNames}",

  testName ? "check-pkg-config-${package.pname or package.name}",

  version ? package.version or null,

  versionCheck ? false,

}: