meson: Make i18n targets work

Regenerating the po(t) files is now possible with:
- meson compile -C build audacious-plugins-pot
- meson compile -C build audacious-plugins-update-po

See also: https://mesonbuild.com/i18n-module.html#i18ngettext

Author: radioactiveman

po/meson.build

@@ -4,12 +4,12 @@ i18n = import('i18n')
 i18n.gettext('audacious-plugins',
   args: [
     '--default-domain=audacious-plugins',
+    '--package-name=Audacious Plugins',
     '--language=C',
     '--keyword=_',
     '--keyword=N_',
     '--from-code=UTF-8',
-    '--msgid-bugs-address="https://github.com/audacious-media-player/audacious/issues"',
+    '--msgid-bugs-address=https://github.com/audacious-media-player/audacious/issues',
     '--directory=@0@'.format(meson.current_source_dir()),
-    '--files-from=POTFILES.in'
   ]
 )