disp bug fix

doc/CHANGELOG.md

@@ -46,6 +46,13 @@ Versions follow `MAJOR.MINOR.PATCH-REVISION_STAGE_N` (e.g. `3.99.1-4_rc_1`).
 - All modules: counters updated with `((x++))`-style commands (which return a
   non-zero status when the value was 0) now use plain assignments, so they no
   longer trigger the ERR trace or break `set -e`.
+- `disp`: a message hidden by `QUIET`/`DEBUG` no longer returns a non-zero
+  status; no reset escape sequence under `NO_COLOR`; debug messages go to
+  stderr; works under `set -u`; faster wrapping.
+- `mdcat`: tables inside fenced code blocks are shown as code; code spans and
+  `\_`-style escapes are protected from emphasis/link parsing; `NO_COLOR` is
+  honoured in tables and headings; fewer subprocesses when rendering tables;
+  newlines in arguments no longer break option parsing.
 - `compress.sh`: option flags and loop variables no longer leak into the
   interactive shell.