pentoo-updater: make rebuilds quieter

if smart-live-rebuild or revdep-rebuild need to rebuild just one package
  it does it noisy, and if there are multiple it does it quietly.  Just
  default to quiet all the time.

Author: ZeroChaos-

scripts/pentoo-updater.sh

@@ -710,8 +710,8 @@ main_upgrades() {
   if portageq list_preserved_libs /; then
     FEATURES="-getbinpkg" emerge @preserved-rebuild --usepkg=n --buildpkg=y || safe_exit
   fi
-  FEATURES="-getbinpkg" smart-live-rebuild 2>&1 || safe_exit
-  revdep-rebuild -i -v -- --usepkg=n --buildpkg=y || safe_exit
+  FEATURES="-getbinpkg" smart-live-rebuild -- --quiet 2>&1 || safe_exit
+  revdep-rebuild -i -v -- --quiet --usepkg=n --buildpkg=y || safe_exit
   if ! emerge --deep --update --newuse -kb --changed-deps --newrepo @world; then
     emerge --deep --update --newuse -kb --changed-deps --newrepo --with-bdeps=y @world || safe_exit
   fi