siint range parsing HOWTO update

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/HOWTO b/HOWTO
index a2070d666ce78dc28506f68386a451152ce4b32d..c8a84ae9d591eb1c813bee5a820a349463c9d16a 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -176,6 +176,8 @@ siint       SI integer. A whole number value, which may contain a postfix
        meaning kilo, mega, and giga. So if you want to specify 4096,
        you could either write out '4096' or just give 4k. The postfixes
        signify base 2 values, so 1024 is 1k and 1024k is 1m and so on.
+       If the option accepts an upper and lower range, use a colon ':'
+       or minus '-' to seperate such values. See irange.
 bool   Boolean. Usually parsed as an integer, however only defined for
        true and false (1 and 0).
 irange Integer range with postfix. Allows value range to be given, such