CentOS6 man pages installation fails

This may be a bug in installation instructions.

I Try to install rclone to CentOS6.8 with these instructions:

but I get

sudo mandb
sudo: mandb: command not found

Also yum search mandb doesn’t return anything useful.

What is the correct command in centos to install man pages?

According to this: http://www.linuxquestions.org/questions/linux-newbie-8/mandb-command-not-found-4175473024/

makewhatis is what you want.