Log Message:
Update to version 3.1.2.

Changes made from patch level 1 to patch level 2:

1. Fixed bug in -makedcls option that allowed a buffer overflow when
   module names exceed 20 characters.

2. Minor changes to source code to clean it up and make it compatible
   with C++.

3. Fixed bug that caused crash when number of statement labels in a
   subprogram exceeded 2000.

4. Fixed bug that could cause access violation on some systems, if
   program contains variable names starting with AA or AB.

5. Fixed bug in handling a labeled END DO statement that matches a
   DO statement that doesn't use a label.

6. Changed license from "BSD"-like to "MIT."