Update documentation for --max-item-size
This limit was added in this patch [1], while this patch [2] fixed it in -h output.
[1]
[2]
@@ -140,7 +140,7 @@ specify the protocol clients must speak. Possible options are "auto"
.TP
.B \-I, --max-item-size=<size>
Override the default size of each slab page. The default size is 1mb. Default
-value for this parameter is 1m, minimum is 1k, max is 128m.
+value for this parameter is 1m, minimum is 1k, max is 1G (1024 * 1024 * 1024).
Adjusting this value changes the item size limit.
.TP
.B \-S, --enable-sasl
