lang bug fix

README.md

@@ -139,7 +139,7 @@ A bar-style prompt showing current time, execution time of the last command
 | `rmhost` | ssh | Remove host(s) (name and IP) from SSH known_hosts; supports `--all-users` as root |
 | `rmspc` | filefct | Replace spaces in filenames with underscores (or a custom character, attached: `-c-` / `--subst-char=-`); never overwrites an existing file and does not follow symlinked directories |
 | `setc` | lang | Set locale to standard C (POSIX) |
-| `setlocale` | lang | Set console locale to any installed locale |
+| `setlocale` | lang | Set console locale to any installed locale (codeset spelling tolerant, UTF-8 preferred when none is given); clears `LC_ALL` and the other per-category variables so the change always applies |
 | `set_theme` | prompt | Switch the prompt colour theme for the session (`--list`, `--preview`, `--save`) |
 | `settrace` | debug | Activate (`--on`), deactivate (`--off`) or query (`--status`) an ERR trap that prints the exit status and a call stack (on stderr) for each failing command; `--force` replaces/removes an ERR trap set by something else; active at startup when `SETTRACE_DEFAULT_ENABLED=1` |
 | `showinfo` | info | Display welcome banner and system information (figlet + fastfetch/neofetch) |