manage: suppress all output from mcpi-fixing runonce

manage

@@ -17,7 +17,7 @@ fi
 source "${DIRECTORY}/api" || error "failed to source ${DIRECTORY}/api"
 
 #remove old mcpi repositories - this runonce is here so that terminal-only users will still receive the fix.
-runonce <<"EOF"
+(runonce <<"EOF"
   if [ -f /etc/apt/sources.list.d/mcpi-revival.list ] && cat /etc/apt/sources.list.d/mcpi-revival.list | grep -qF 'https://mcpirevival.tk/mcpi-packages' ;then
     echo 'deb [trusted=yes] https://mcpi-revival.github.io/mcpi-packages/ buster main' | sudo tee /etc/apt/sources.list.d/mcpi-revival.list
   elif [ -f /etc/apt/sources.list.d/mcpi-revival.list ] && cat /etc/apt/sources.list.d/mcpi-revival.list | grep -qF 'https://mcpi-revival.github.io/mcpi-packages/debs' ;then
@@ -27,6 +27,7 @@ runonce <<"EOF"
     sudo rm -f /etc/apt/sources.list.d/Alvarito050506_mcpi-devs.list
   fi
 EOF
+) &>/dev/null &
 
 mkdir -p "${DIRECTORY}/data/status" "${DIRECTORY}/data/update-status" "${DIRECTORY}/logs"
 #remove week-old logfiles