Multibyte tests were all 'failing' because of change of

wording of 'relation does not exist' error message.  Update expected files
accordingly.

src/test/mb/expected/euc_cn.out

@@ -1,5 +1,5 @@
 QUERY: drop table 计算机术语;
-ERROR:  Relation 计算机术语 Does Not Exist!
+ERROR:  Relation '计算机术语' does not exist
 QUERY: create table 计算机术语(术语 text, 分类号 varchar, 备注1A char(16));
 QUERY: create index 计算机术语index1 on 计算机术语 using btree(术语);
 QUERY: create index 计算机术语index2 on 计算机术语 using btree(分类号);

src/test/mb/expected/euc_jp.out

@@ -1,5 +1,5 @@
 QUERY: drop table 計算機用語;
-ERROR:  Relation 計算機用語 Does Not Exist!
+ERROR:  Relation '計算機用語' does not exist
 QUERY: create table 計算機用語 (用語 text, 分類コード varchar, 備考1Aだよ char(16));
 QUERY: create index 計算機用語index1 on 計算機用語 using btree (用語);
 QUERY: create index 計算機用語index2 on 計算機用語 using hash (分類コード);

src/test/mb/expected/euc_kr.out

@@ -1,5 +1,5 @@
 QUERY: drop table 計算機용어;
-ERROR:  Relation 計算機용어 Does Not Exist!
+ERROR:  Relation '計算機용어' does not exist
 QUERY: create table 計算機용어 (용어 text, 分類코드 varchar, 비고1A라구 char(16));
 QUERY: create index 計算機용어index1 on 計算機용어 using btree (용어);
 QUERY: create index 計算機용어index2 on 計算機용어 using hash (分類코드);

src/test/mb/expected/euc_tw.out

@@ -1,5 +1,5 @@
 QUERY: drop table 燹俑骜砧;
-ERROR:  Relation ìÞÙ¸æñÕè Does Not Exist!
+ERROR:  Relation 'ìÞÙ¸æñÕè' does not exist
 QUERY: create table 燹俑骜砧 (如淦杀 text, 狞瞥婉螭 varchar, 氢蛇 varchar(16));
 QUERY: create index 燹俑骜砧index1 on 燹俑骜砧 using btree (如淦杀);
 QUERY: create index 燹俑骜砧index2 on 燹俑骜砧 using hash (狞瞥婉螭);

src/test/mb/expected/mule_internal.out

@@ -1,5 +1,5 @@
 QUERY: drop table ’·×’»»’µ¡’ÍÑ’¸ì;
-ERROR:  Relation ’·×’»»’µ¡’ÍÑ’¸ì Does Not Exist!
+ERROR:  Relation '’·×’»»’µ¡’ÍÑ’¸ì' does not exist
 QUERY: create table ’·×’»»’µ¡’ÍÑ’¸ì (’ÍÑ’¸ì text, ’ʬ’Îà’¥³’¡¼’¥É varchar, ’È÷’¹Í1A’¤À’¤è char(16));
 QUERY: create index ’·×’»»’µ¡’ÍÑ’¸ìindex1 on ’·×’»»’µ¡’ÍÑ’¸ì using btree (’ÍÑ’¸ì);
 QUERY: create index ’·×’»»’µ¡’ÍÑ’¸ìindex2 on ’·×’»»’µ¡’ÍÑ’¸ì using hash (’ʬ’Îà’¥³’¡¼’¥É);
@@ -86,7 +86,7 @@ QUERY: select *,substring(
 (3 rows)
 
 QUERY: drop table ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
-ERROR:  Relation ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï Does Not Exist!
+ERROR:  Relation '‘¼Æ‘Ëã‘»ú‘Êõ‘Óï' does not exist
 QUERY: create table ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï(‘Êõ‘Óï text, ‘·Ö‘Àà‘ºÅ varchar, ‘±¸‘×¢1A char(16));
 QUERY: create index ‘¼Æ‘Ëã‘»ú‘Êõ‘Óïindex1 on ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï using btree(‘Êõ‘Óï);
 QUERY: create index ‘¼Æ‘Ëã‘»ú‘Êõ‘Óïindex2 on ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï using btree(‘·Ö‘Àà‘ºÅ);
@@ -173,7 +173,7 @@ QUERY: select *,substring(
 (3 rows)
 
 QUERY: drop table “ͪ“ß©“Ѧ“¿ë“¾î;
-ERROR:  Relation “ͪ“ß©“Ѧ“¿ë“¾î Does Not Exist!
+ERROR:  Relation '“ͪ“ß©“Ѧ“¿ë“¾î' does not exist
 QUERY: create table “ͪ“ß©“Ѧ“¿ë“¾î (“¿ë“¾î text, “Ý“׾“ÄÚ“µå varchar, “ºñ“°í1A“¶ó“±¸ char(16));
 QUERY: create index “ͪ“ß©“Ѧ“¿ë“¾îindex1 on “ͪ“ß©“Ѧ“¿ë“¾î using btree (“¿ë“¾î);
 QUERY: create index “ͪ“ß©“Ѧ“¿ë“¾îindex2 on “ͪ“ß©“Ѧ“¿ë“¾î using hash (“Ý“׾“ÄÚ“µå);
@@ -260,7 +260,7 @@ QUERY: select *,substring(
 (3 rows)
 
 QUERY: drop table test;
-ERROR:  Relation test Does Not Exist!
+ERROR:  Relation 'test' does not exist
 QUERY: create table test (t text);
 QUERY: insert into test values('ENGLISH');
 QUERY: insert into test values('FRAN<41>ÇAIS');

src/test/mb/expected/unicode.out

@@ -1,5 +1,5 @@
 QUERY: drop table 計算機用語;
-ERROR:  Relation 計算機用語 Does Not Exist!
+ERROR:  Relation '計算機用語' does not exist
 QUERY: create table 計算機用語 (用語 text, 分類コード varchar, 備考1Aだよ char(16));
 QUERY: create index 計算機用語index1 on 計算機用語 using btree (用語);
 QUERY: create index 計算機用語index2 on 計算機用語 using hash (分類コード);