Bug#14051002 VALGRIND: CONDITIONAL JUMP OR MOVE IN RR_CMP / MY_QSORT

Patch for 5.1 and 5.5: fix typo in byte comparison in rr_cmp()

sql/records.cc

@@ -631,7 +631,7 @@ static int rr_cmp(uchar *a,uchar *b)
   if (a[4] != b[4])
     return (int) a[4] - (int) b[4];
   if (a[5] != b[5])
-    return (int) a[1] - (int) b[5];
+    return (int) a[5] - (int) b[5];
   if (a[6] != b[6])
     return (int) a[6] - (int) b[6];
   return (int) a[7] - (int) b[7];