make-binaries: Adjust Mnesia spool directory path

Adjust the default Mnesia directory for compatibility with older binary
packages.

Closes #3818.

tools/make-binaries

@@ -367,6 +367,7 @@ edit_ejabberdctl()
 	    -e '/ERL_OPTIONS=/d' \
 	    -e 's|^ERLANG_NODE=ejabberd$|ERLANG_NODE=ejabberd@localhost|' \
 	    -e 's|_DIR:=".*}/|_DIR:="/opt/ejabberd/|' \
+	    -e 's|/database|/database/$ERLANG_NODE|' \
 	    "$code_dir/bin/${rel_name}ctl"
 }
 #.