DOC: update INSTALL with supported OpenBSD / FreeBSD versions
Update INSTALL with the OpenBSD / FreeBSD versions that are supported.
diff --git a/INSTALL b/INSTALL
index 04b0349..f562a71 100644
--- a/INSTALL
+++ b/INSTALL
@@ -375,10 +375,10 @@
- linux-glibc-legacy for Linux kernel 2.6.28 and above without new features
- linux-musl for Linux kernel 2.6.28 and above with musl libc
- solaris for Solaris 10 and above
- - freebsd for FreeBSD 5 to 12 (others untested)
+ - freebsd for FreeBSD 10 and above
- netbsd for NetBSD
- osx for Mac OS/X
- - openbsd for OpenBSD 5.7 and above
+ - openbsd for OpenBSD 6.3 and above
- aix51 for AIX 5.1
- aix52 for AIX 5.2
- aix72-gcc for AIX 7.2 (using gcc)