- Correct misleading doc comments on set_string_option /
set_positive_int_option / set_nonneg_int_option (they return 0/-1,
not true/false).
- find_table_option_with_equals() now matches every OPTION_TABLE value
option (OPT_STRING/OPT_POS_INT/OPT_NONNEG_INT/OPT_ULL), so forms such
as --max-size=2G, --min-size=1K, --suffix=.bak, --timeout=30,
--max-depth=5, --backup-dir=X parse instead of dying as 'Unknown option'.
--max-size/--min-size now accept rsync-style binary suffixes (0 remains a
valid 'no limit' byte count). Existing special handling for
--compress-choice, --compress-level, --modify-window=, --chmod=,
--skip-compress=, --compress-threads= is preserved.
- Options that require a separate value (-p, --exclude, --include,
--delta-block, --delta-max, --server-port, --bwlimit, --chunk-size,
--log-file, --exclude-from, --include-from, -T, --skip-compress,
--compress-threads) now emit an explicit 'missing argument' diagnostic
instead of falling through to the generic 'Unknown option' branch when
given as the final argv entry.
- Add unit tests covering the = forms (--max-size=2G, --min-size=1K,
--suffix=.bak, --timeout=30, --max-depth=5, --backup-dir=X) and a clean
'missing argument' (not 'Unknown option') diagnostic for trailing
--exclude/--server-port/--skip-compress/-T.
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