Hojun-Cho
18fe1a7a31
The 0-arg ltrim/rtrim/trim used to return input unchanged. Hare's 0-arg form strips [' ', '\n', '\t', '\r'] (ref/hare/strings/trim.ha:6). Aligned by delegating to bytes.ltrim/bytes.rtrim with the whitespace set spread inline at the call site — the obvious `let ws = whitespace[0:4]` shape produces a slice whose ptr does NOT alias storage (#40). N-arg forms (strip-specific-runes) untouched. Test rows retargeted to Hare's canonical inputs from trim.ha:78/85 so '\r' is exercised alongside ' '/'\t'/'\n'.