Fix regex for NIX type systems?

Author: Girgias

ext/standard/tests/file/unlink_error.phpt

@@ -101,6 +101,6 @@ bool(false)
 
 -- Testing unlink() on directory --
 
-Warning: unlink(): %r(\(%s/unlink_error\) Is a directory|Operation not permitted \(%s/unlink_error\))%r in %s on line %d
+Warning: unlink(): %r(Is a directory |)%r(%s/unlink_error)%r(| Operation not permitted)%r in %s on line %d
 bool(false)
 Done

ext/standard/tests/file/unlink_variation10.phpt

@@ -102,5 +102,5 @@ directory unlinked
 
 --- try to unlink a directory ---
 
-Warning: unlink(): %r(\(unlinkVar10.tmp/linkme.tmp\) Is a directory|Operation not permitted \(unlinkVar10.tmp/linkme.tmp\))%r in %s on line %d
+Warning: unlink(): %r(Is a directory |)%r(unlinkVar10.tmp/linkme.tmp)%r(| Operation not permitted)%r in %s on line %d
 ===DONE===