dl-search.c is a copy

dl-search.c (and test/dl-search-probe.c, test/dl-search-test.sh) is sigil-desktop's src/c/dl-search.c, byte for byte (sigil-desktop records the same hash in its own src/c/DL-SEARCH-ORIGIN.md, so a change on either side reddens a test), configured here with -DSIGIL_DL_SEARCH_INTERPOSE=0 and the sigil_audio_* names (see package.sgl). The one file serves both packages because a program may link either without the other (a game links both; motif's CLI links only sigil-audio), and a shared package for 200 lines would cost a repository and a release cycle in every consumer. Two copies with recorded provenance is the estate's vendoring rule applied to its own code.

Origin: sigil-desktop src/c/dl-search.c, sha256

c3495d28b963ff5defe58375153c96e4d9e86ced6b9d3e4fa1fbb234bac3881a

Change it in sigil-desktop first, copy it here, update this hash; test/dl-search-test.sh refuses a copy whose hash differs from the one recorded here.