listamsb: add -r option; listbas: fix typo in -r error message.

1 files changed, 12 insertions, 1 deletions

diff --git a/listamsb.rst b/listamsb.rst
index 98c36ae..d4174f9 100644
--- a/listamsb.rst
+++ b/listamsb.rst
@@ -45,12 +45,23 @@ OPTIONS
   Check only. No output on stdout. Diagnostics are still printed on stderr,
   and the exit status is unchanged.
 
+**-r** *line-range*
+  Show only part of the listing. *line-range* can be a single line, or
+  a comma-separated pair of starting and ending line numbers (e.g. **100,200**).
+  If the start line number is omitted (e.g. **,100**), it will be treated as
+  **0** (meaning, list from the beginning of the program). If the ending line
+  number is omitted (e.g. **100,**), it means "list until the end of the program".
+  **-r,** is equivalent to not using the **-r** option at all.
+
 **-v**
   Verbose output, on stderr.
 
-**-h**
+**-h**\, **--help**
   Print built-in help and exit.
 
+**--version**
+  Print version number and exit.
+
 **-i**\, **-u**\, **-t**\, **-m**\, **-s**
   These options are passed to **a8cat**. See its man page for details. If
   the **-a** or **-c** option is used, these options have no effect.