Merge

sql/sql_class.cc

@@ -961,7 +961,7 @@ static File create_file(THD *thd, char *path, sql_exchange *exchange,
     return -1;
   }
   /* Create the file world readable */
-  if ((file= my_create(path, 0666, O_WRONLY, MYF(MY_WME))) < 0)
+  if ((file= my_create(path, 0666, O_WRONLY|O_EXCL, MYF(MY_WME))) < 0)
     return file;
 #ifdef HAVE_FCHMOD
   (void) fchmod(file, 0666);			// Because of umask()