fix conf management

doc/CHANGELOG.md

@@ -25,6 +25,17 @@ Versions follow `MAJOR.MINOR.PATCH-REVISION_STAGE_N` (e.g. `3.99.1-4_rc_1`).
   fallback (no `pigz`) works again.
 - `utaz`: single top-level directory flattening, `--no-dir` target location,
   `foo.tar.gz` host directory name and `.tar.lz` extraction.
+- `conf_save`: no longer replaces a symlinked configuration file by a regular
+  one, keeps the file permissions, rejects multi-line values, and inserts a new
+  key before the trailing comments/banner of its section instead of under the
+  next section's banner; leading blanks before a `[section]` are recognised.
+- `conf_dump -a`: a commented default is no longer listed when the key is set
+  later in the same section; `NO_COLOR` is honoured; names with newlines or
+  backslashes in arguments are handled.
+- `term_set`: `COLORTERM=truecolor` no longer short-circuits every other probe
+  (it selected `xterm-direct` even inside tmux/screen or VTE terminals);
+  multiplexers (tmux, screen) are now checked before emulator hints, since they
+  inherit the emulator's variables.
 - `compress.sh`: option flags and loop variables no longer leak into the
   interactive shell.
 

doc/FAQ.md

@@ -157,8 +157,9 @@ Set `TERM` in the `[system]` section of `profile.conf`:
 When `TERM` is absent or set to `smart`, `term_set` probes your terminal
 emulator's environment variables (`COLORTERM`, `TERM_PROGRAM`, `VTE_VERSION`,
 `WT_SESSION`, `TMUX`, `STY`) and then tests terminfo entries in preference
-order.  If you are experiencing display issues, run `term_set` interactively
-and check the result with `echo $TERM`.  See *Prompt & theming* below for
+order (multiplexers first).  If you are experiencing display issues, run
+`TERM=smart; term_set` interactively (`term_set` leaves an already-set `TERM`
+untouched) and check the result with `echo $TERM`.  See *Prompt & theming* below for
 symptoms caused by a wrong `TERM` value.
 
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