$NetBSD: patch-ae,v 1.22 2022/10/15 18:20:40 triaxx Exp $

- Default locations.
- Use 'su -' instead of just 'su'. Fixes priv delegation on SunOS
  and AIX where Erlang relies on $HOME set correctly. Use a portable
  su arg order while at it.
- At least SunOS has not wheel group.
- Portable grep calls.
- Fix spool directory.

--- ejabberdctl.template.orig	2022-05-06 13:12:22.000000000 +0000
+++ ejabberdctl.template
@@ -112,7 +112,7 @@ export SCRIPT_DIR
 exec_cmd()
 {
     case $EXEC_CMD in
-        as_install_user) su -s /bin/sh -c '"$0" "$@"' "$INSTALLUSER" -- "$@" ;;
+        as_install_user) su - "$INSTALLUSER" -c '"$@"' -- "$@" ;;
         as_current_user) "$@" ;;
     esac
 }
@@ -218,14 +218,14 @@ uid()
 # stop epmd if there is no other running node
 stop_epmd()
 {
-    "$EPMD" -names 2>/dev/null | grep -q name || "$EPMD" -kill >/dev/null
+    "$EPMD" -names 2>/dev/null | grep name >/dev/null || "$EPMD" -kill >/dev/null
 }
 
 # make sure node not already running and node name unregistered
 # if all ok, ensure runtime directory exists and make it current directory
 check_start()
 {
-    "$EPMD" -names 2>/dev/null | grep -q " ${ERLANG_NODE%@*} " && {
+    "$EPMD" -names 2>/dev/null | grep " ${ERLANG_NODE%@*} " >/dev/null && {
         pgrep -f "$ERLANG_NODE" >/dev/null && {
             echo "ERROR: The ejabberd node '$ERLANG_NODE' is already running."
             exit 4