"Broken pipe" messages while last archlinux keyring update

[Manuel Reimer <Manuel.Spam@xxxxxxxxxxxxxx>]

Hello,

with the last update of the Archlinux keyring package, I got a few errors like 
the following one:

usr/bin/pacman-key: line 615: printf: write error: Broken pipe

Is this a known bug or can this be ignored?

Yours

Manuel Reimer