Update output in tcfail071

testsuite/tests/ghc-regress/typecheck/should_fail/tcfail071.stderr

 
 tcfail071.hs:9:0:
     Contexts differ in length
-      (Use -fglasgow-exts to allow this)
+      (Use -XRelaxedPolyRec to allow this)
     When matching the contexts of the signatures for
       f :: forall d. (Ord d) => d -> d
       g :: forall e. e -> e