Bug#12912112 MYSQL_CLIENT_TEST FAILS ON TEST_TRUNCATION

       
Sun Studio 12 has an error when calculating the compile-time 
length of a constant character string.  The error is only 
present when building an optimized 32-bits version, using 
the -xbuiltin=(%all) compiler flag. 
       
During compilation, the compiler recognizes the use of 
the strlen() function used on a constant string. It 
optimizes the strlen and replaces it with the actual 
length of the string.   This optimization seems to 
calculate the length wrongly in this particular case. 
       
Replacing the "const char *" with a "const char []" 
solves the problem. 

tests/mysql_client_test.c

@@ -13445,7 +13445,10 @@ static void test_truncation()
              ")";
   rc= mysql_real_query(mysql, stmt_text, strlen(stmt_text));
   myquery(rc);
-  stmt_text= "insert into t1 VALUES ("
+
+  {
+    const char insert_text[]= 
+             "insert into t1 VALUES ("
              "-10, "                            /* i8 */
              "200, "                            /* ui8 */
              "32000, "                          /* i16 */
@@ -13461,8 +13464,9 @@ static void test_truncation()
              "'12345.67 	      ', "      /* tx_1 */
              "'12345.67abc'"                    /* ch_2 */
              ")";
-  rc= mysql_real_query(mysql, stmt_text, strlen(stmt_text));
-  myquery(rc);
+    rc= mysql_real_query(mysql, insert_text, strlen(insert_text));
+    myquery(rc);
+  }
 
   stmt_text= "select i8 c1, i8 c2, ui8 c3, i16_1 c4, ui16 c5, "
              "       i16 c6, ui16 c7, i32 c8, i32_1 c9, i32_1 c10, "