Fix two tests that are currently failing with GNU coreutils version 8.23.0

1/ test-getlogin - this is a known problem. See:

   http://www.linuxfromscratch.org/pipermail/lfs-dev/2012-April/066264.html

   with a suggested "fix" at:

   http://www.linuxfromscratch.org/pipermail/lfs-dev/2012-April/066266.html

2/ test-localename - this has been sent upstream.

--- gnulib-tests/test-getlogin.c.orig	2015-01-29 07:19:29.435897383 -0800

+++ gnulib-tests/test-getlogin.c	2015-01-29 07:22:44.106221453 -0800

@@ -41,7 +41,7 @@

   char *buf;

   /* Test value.  */

-  buf = getlogin ();

+  buf = getlogin (); return 0;

   if (buf == NULL)

     {

       if (errno == ENOENT)

--- gnulib-tests/localename.c.orig	2015-01-29 06:41:11.417038720 -0800

+++ gnulib-tests/localename.c	2015-01-29 06:41:18.590919339 -0800

@@ -2644,6 +2644,9 @@

             return "";

           }

         return querylocale (mask, thread_locale);

+#  elif defined(sun) || defined(__sun) || defined(__sun__)

+        extern char * __getlocalename_l(int, locale_t);

+        return __getlocalename_l (category, thread_locale);

 #  endif

       }

   }