Update tst_mbrlen/tst_mbrtowc for mblen change

commit 9781a37 changed the expected
results for mbrlen in case of passing n=0 to -2. The initialization of
tst_mbrlen_loc and tst_mbrtowc should be updated accordingly.

	* tests-mbwc/dat_mbrlen.c (tst_mbrlen_loc): Change expected
	result to -2 in case of n == 0.
	* tests-mbwc/tst_mbrtowc.c (tst_mbrtowc): Check result against
	-2 instead of 0.

localedata/ChangeLog

@@ -1,3 +1,10 @@
+2015-04-10  Stefan Liebler  <stli@linux.vnet.ibm.com>
+
+	* tests-mbwc/dat_mbrlen.c (tst_mbrlen_loc): Change expected
+	result to -2 in case of n == 0.
+	* tests-mbwc/tst_mbrtowc.c (tst_mbrtowc): Check result against
+	-2 instead of 0.
+
 2015-03-04  Roland McGrath  <roland@hack.frob.com>
 
 	* bug-setlocale1.c (do_test): Remove argument handling and

localedata/tests-mbwc/dat_mbrlen.c

@@ -30,7 +30,7 @@ TST_MBRLEN tst_mbrlen_loc [] = {
 	},
 	{
 	  {
-	    { 0,		1,  0,		     },
+	    { 0,		1,  -2,		     },
 	    { 0,		1,  0,		     },
 	    { 0,		1,  1,		     },
 	  }
@@ -46,7 +46,7 @@ TST_MBRLEN tst_mbrlen_loc [] = {
 	},
 	{
 	  {
-	    { 0,		1,  0,		     },
+	    { 0,		1,  -2,		     },
 	    { 0,		1,  1,		     },
 	    { 0,		1,  1,		     },
 	  }
@@ -68,7 +68,7 @@ TST_MBRLEN tst_mbrlen_loc [] = {
 	},
 	{
 	  {
-	    { 0,		1,  0,		     },
+	    { 0,		1,  -2,		     },
 	    { 0,		1,  1,		     },
 	    { 0,		1,  1,		     },
 	  }
@@ -84,7 +84,7 @@ TST_MBRLEN tst_mbrlen_loc [] = {
 	},
 	{
 	  {
-	    { 0,		1,  0,		     },
+	    { 0,		1,  -2,		     },
 	    { EILSEQ,	1, -1,		     },
 	    { EILSEQ,	1, -1,		     },
 	  }
@@ -140,7 +140,7 @@ TST_MBRLEN tst_mbrlen_loc [] = {
 	},
 	{
 	  {
-	    { 0,		1,  0,		     },
+	    { 0,		1,  -2,		     },
 	    { 0,		1, -2,		     },
 	    { EILSEQ,	1, -1,		     },
 	  }

localedata/tests-mbwc/tst_mbrtowc.c

@@ -26,7 +26,7 @@ tst_mbrtowc (FILE * fp, int debug_flg)
     TST_HEAD_LOCALE (mbrtowc, S_MBRTOWC);
     TST_DO_REC (mbrtowc)
     {
-      if (mbrtowc (NULL, "", 0, &t) != 0)
+      if (mbrtowc (NULL, "", 0, &t) != -2)
 	{
 	  err_count++;
 	  Result (C_FAILURE, S_MBRTOWC, CASE_3,