Merge branch 'rs/strbuf-avoid-redundant-reset'

A redundant strbuf_reset() call in the 'HAVE_GETDELIM' path of strbuf_getwholeline() has been removed, as getdelim() overwrites the buffer and the length is updated afterward. * rs/strbuf-avoid-redundant-reset: strbuf: avoid redundant reset in strbuf_getwholeline()