fun bug fix

README.md

@@ -91,7 +91,7 @@ A bar-style prompt showing current time, execution time of the last command
 
 | Function | Module | Description |
 | --- | --- | --- |
-| `busy` | fun | Monitor /dev/urandom for a hex pattern — look busy |
+| `busy` | fun | Monitor /dev/urandom for a hex pattern — look busy; the pattern can also be given as argument; runs until a key (or Ctrl-C) is pressed, needs a terminal |
 | `check_updates` | updates | Check whether a newer profile version is available online; when called with `-q` at startup a 3-second network timeout is applied so a slow or absent network never delays the prompt |
 | `clean` | filefct | Erase backup files in given directories, optionally recursive |
 | `conf_dump` | conf | Display the profile configuration file; `-s/--section NAME` restricts output to one section; `-a/--all` also lists commented-out keys (documented defaults, skipped when the key is set); an optional pattern argument filters keys by substring match; honours `NO_COLOR` |
@@ -275,8 +275,8 @@ change the default without having to pass flags every time.
 
 | Key | Default | Description |
 | --- | --- | --- |
-| `BUSY_DEFAULT_PATTERN` | `[0-9a-f]` | Hex pattern matched by `busy` |
-| `BUSY_DEFAULT_DELAY` | `0.1` | Polling delay (seconds) for `busy` |
+| `BUSY_DEFAULT_PATTERN` | `ca fe` | String searched (fixed string, case-insensitive) in the hexdump lines printed by `busy` |
+| `BUSY_DEFAULT_DELAY` | `0` | Delay between printed lines for `busy`, in milliseconds (integer, `0` = none) |
 | `FAKE_COMPILE_DEFAULT_MIN_DELAY` | `40` | Min delay between output lines for `fake_compile` (ms) |
 | `FAKE_COMPILE_DEFAULT_MAX_DELAY` | `150` | Max delay between output lines for `fake_compile` (ms) |
 | `FAKE_COMPILE_DEFAULT_LANG` | `c` | Default language preset for `fake_compile` (`c`, `cpp`, `java`, `python`, `random`) |