mysqltest: don't eat new lines in --exec

pass them through as is

client/mysqltest.cc

@@ -3349,10 +3349,6 @@ void do_exec(struct st_command *command)
 #endif
 #endif
 
-  /* exec command is interpreted externally and will not take newlines */
-  while(replace(&ds_cmd, "\n", 1, " ", 1) == 0)
-    ;
-  
   DBUG_PRINT("info", ("Executing '%s' as '%s'",
                       command->first_argument, ds_cmd.str));
 

mysql-test/r/mysql_not_windows.result

@@ -3,3 +3,9 @@ a
 1
 
 End of tests
+1
+1
+2
+2
+X
+3

mysql-test/r/mysqltest.result

@@ -269,12 +269,6 @@ source database
 echo message echo message
 
 mysqltest: At line 1: Missing argument in exec
-1
-1
-2
-2
-X
-3
 MySQL
 "MySQL"
 MySQL: The

mysql-test/t/mysql_not_windows.test

@@ -13,3 +13,12 @@
 
 --echo
 --echo End of tests
+
+# Multi-line exec
+exec $MYSQL \
+    test -e "select 1";
+exec $MYSQL test -e "select
+    2";
+let $query = select 3
+    as X;
+exec $MYSQL test -e "$query";

mysql-test/t/mysqltest.test

@@ -741,15 +741,6 @@ echo ;
 --error 1
 --exec echo "--exec " | $MYSQL_TEST 2>&1
 
-# Multi-line exec
-exec $MYSQL
-    test -e "select 1";
-exec $MYSQL test -e "select
-    2";
-let $query = select 3
-    as X;
-exec $MYSQL test -e "$query";
-
 # ----------------------------------------------------------------------------
 # Test let command
 # ----------------------------------------------------------------------------