Fix posix005 test

Needed import of sort and updated expected output

tests/libposix/posix005.hs

-
+import Data.List (sort)
 import System.IO
 import System.Posix.Env
 

tests/libposix/posix005.stdout

 vt100
 [("one","1"),("two","2")]
-[("one","1"),("two","2"),("foo","bar")]
-[("one","1"),("two","2"),("foo","baz")]
-[("one","1"),("two","2"),("foo","baz"),("fu","bar")]
-[("one","1"),("two","2"),("fu","bar")]
+[("foo","bar"),("one","1"),("two","2")]
+[("foo","baz"),("one","1"),("two","2")]
+[("foo","baz"),("fu","bar"),("one","1"),("two","2")]
+[("fu","bar"),("one","1"),("two","2")]
 []