Resolving `xterm: cannot load font -misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1`

Frequently I see in journalctl output:

<date> <vm> qubes.StartApp+qubes-run-terminal-dom0[..]: xterm: cannot load font "-misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1"

It's harmless, just log noise. Comes of using xterm on reduced/minimal templates. Here's the simplest way to make it go away (Debian):

root@template:~# apt install xfonts-base
root@template:~# fc-cache  # (might not be required)

Resolving xterm: cannot load font -misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1