xbps-triggers: system-accounts: use /var/empty by default.

some system users expect a valid path to work properly (polkit),
and /var/empty is there exactly for this.

srcpkgs/xbps-triggers/files/system-accounts

@@ -90,7 +90,7 @@ run)
 			eval descr="\$${_uname}_descr"
 			eval groups="\$${_uname}_groups"
 			eval pgroup="\$${_uname}_pgroup"
-			[ -z "$homedir" ] && homedir="/dev/null"
+			[ -z "$homedir" ] && homedir="/var/empty"
 			[ -z "$shell" ] && shell="/sbin/nologin"
 			[ -z "$descr" ] && descr="${_uname} unprivileged user"
 			[ -n "$groups" ] && user_groups="-G $groups"

srcpkgs/xbps-triggers/template

@@ -1,6 +1,6 @@
 # Template file for 'xbps-triggers'
 pkgname=xbps-triggers
-version=0.92
+version=0.93
 revision=1
 noarch=yes
 bootstrap=yes