Log Message:
Pullup ticket #5453 - requested by sevan
lang/guile20: FreeSD build fix

Revisions pulled up:
- lang/guile20/Makefile                                         1.13

---
   Module Name:    pkgsrc
   Committed By:   ryoon
   Date:           Wed May 17 12:06:20 UTC 2017

   Modified Files:
           pkgsrc/lang/guile20: Makefile

   Log Message:
   Fix packaging under FreeBSD/amd64 10.2 and 11.0

   At least under 10.2, 10.3-RC3 and 11.0, GUILE_LIBNAME is so.22.8.1 like
   other platforms.