[CentOS] does ssh-copy-id not use "id_rsa.pub" file by default?

[John Doe]

From: Robert P. J. Day <rpjday at crashcourse.ca>

>   If  the  -i  option   is  given   then   the   identity   file
>    (defaults   to  ~/.ssh/id_rsa.pub)  is  used

My man page says: "~/.ssh/identity.pub"...

JD