getopt_long-simple behaves as gnu getopt if POSIXLY_CORRECT is set, adapt test

test/unistd/Makefile

@@ -5,4 +5,9 @@ include ../Test.mak
 
 OPTS_getopt      := -abcXXX -9
 OPTS_getopt_long := --add XXX --delete YYY --verbose
+ifeq ($(UCLIBC_HAS_GNU_GETOPT),y)
 OPTS_tstgetopt   := -a -b -cfoobar --required foobar --optional=bazbug --none random --col --color --colour
+else
+# reordering is not supported, behaves as if POSIXLY_CORRECT would be set
+OPTS_tstgetopt   := -a -b -cfoobar --required foobar --optional=bazbug --none --colou --color --colour random
+endif