fix getuto emitting informative messages regarding what it is doing

quiet mode silences all output, as made more obvious by the previous
change. This isn't really appropriate for einfo status messages, though,
even if it is fine for gpg output itself. Redirect our einfos to a
temporary fd so we can capture them and preserve them.

Fixes portage being entirely silent about the fact that it is running
the trust helper, leading to people thinking portage itself is hanging
forever if getuto itself has issues.

Author: eli-schwartz

getuto

@@ -64,7 +64,7 @@ getuto_refresh() {
 	fi
 
 	if (( ${NOW} - ${DAY} >= ${LST} )) ; then
-		einfo "Updating gnupg keyring for package signatures"
+		einfo "Updating gnupg keyring for package signatures" >&3
 
 		# Always re-import the system keys because it might be our only source of updates
 		# for e.g. revocations, renewals, etc if we're on a firewalled machine.
@@ -81,7 +81,7 @@ getuto_refresh() {
 
 		touch ${LASTRUNFILE}
 	else
-		[[ -n ${QUIET} ]] || einfo "gnupg keyring for package signatures already up-to-date."
+		[[ -n ${QUIET} ]] || einfo "gnupg keyring for package signatures already up-to-date." >&3
 	fi
 }
 
@@ -191,11 +191,13 @@ else
 	# We want to be able to filter error messages
 	export LC_ALL=C.UTF8
 
-	if [[ -n ${QUIET} ]] ; then
-		getuto_refresh >/dev/null 2>&1
-	else
-		getuto_refresh
-	fi
+	{
+		if [[ -n ${QUIET} ]] ; then
+		    getuto_refresh >/dev/null 2>&1
+		else
+		    getuto_refresh
+		fi
+	} 3>&1
 fi
 
 # Make sure the trustdb is world-readable (again).