nicowilliams/heimdal — comment on commit 8e63cff2cc35294e7ef2898b8fa0cecbaedd1bff
File: lib/krb5/krb5.conf.5 line 271
By lha:

use .Xr for manage references (more of these below)

Manual Page Cross References
The `.Xr' macro expects the first argument to be a manual page name. The optional second argument, if a string (defining the manual sec-
tion), is put into parentheses.

Usage: .Xr [

] ...

.Xr mdoc mdoc
.Xr mdoc , mdoc,
.Xr mdoc 7 mdoc(7)
.Xr xinit 1x ; xinit(1x);