[Vcftools-help] "Error: Unknown option: --remove-indels" -- vcftools version 0.1.8

[Warren W. K. <wkr...@gm...>]

Hi,
I am trying to run vcftools with the --remove-indels option, but I get this
error: "Error: Unknown option: --remove-indels".

This page says that the --remove-indels option is supported.  Is it perhaps
a version problem? My vcftools version is 0.1.8

I get the error even when all I run is:
vcftools --remove-indels

Regards,
Warren