Patch from Raghu for 1st part of bug #2886. 'cd file' returns now "Not a directory".

The check is done in the same way in bash 3.2.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30232 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/bash/builtins/cd.def

@@ -398,7 +398,8 @@ change_to_directory (newdir, nolinks)
      resolved path doesn't exist), fail immediately. */
   if (posixly_correct && nolinks == 0 && canon_failed)
     {
-      errno = ENOENT;
+      if (errno != ENOENT)
+	errno = ENOTDIR;
       return (0);
     }