Remove zlogout's Apu quote (#1583)

* Remove zlogout's Apu quote

For questions about why, see https://en.wikipedia.org/wiki/The_Problem_with_Apu

* Add a couple of random sayings per feedback in #1583

runcoms/zlogout

@@ -8,11 +8,12 @@
 # Execute code only if STDERR is bound to a TTY.
 [[ -o INTERACTIVE && -t 2 ]] && {
 
-# Print the message.
-cat <<-EOF
+SAYINGS=(
+    "So long and thanks for all the fish.\n  -- Douglas Adams"
+    "Good morning! And in case I don't see ya, good afternoon, good evening and goodnight.\n  --Truman Burbank"
+)
 
-Thank you. Come again!
-  -- Dr. Apu Nahasapeemapetilon
-EOF
+# Print a randomly-chosen message:
+echo $SAYINGS[$(($RANDOM % ${#SAYINGS} + 1))]
 
 } >&2