Merge pull request #309150 from khaneliman/pulsemixer

pulsemixer: fix darwin libpulseaudio reference

pkgs/tools/audio/pulsemixer/default.nix

···
 
   postFixup = ''
     substituteInPlace "$out/bin/pulsemixer" \
-      --replace "libpulse.so.0" "$libpulseaudio/lib/libpulse.so.0"
+      --replace-fail "libpulse.so.0" "$libpulseaudio/lib/libpulse${stdenv.hostPlatform.extensions.sharedLibrary}"
   '';
 
   meta = with lib; {