Remove leftover USES=autoreconf from when we were fetching from GitHub. We've been using pre-rolled releases since 0ffcdbd9d5e5 (2020-26-09) and we don't patch the autotools files. Elevate CPE_VENDOR and USE_LDCONFIG to USES block (portclippy). Sort OPTIONS_DEFINE/OPTIONS_DEFAULT (portclippy). Align whitespace within blocks for readability. https://github.com/libass/libass/releases/tag/0.17.4