[Libreoffice] Set COPYRECURSE to -R on OpenBSD too instead of -r

[Robert Nagy]

diff --git a/solenv/inc/unitools.mk b/solenv/inc/unitools.mk
index 6bf0653..c6055d1 100644
--- a/solenv/inc/unitools.mk
+++ b/solenv/inc/unitools.mk
@@ -107,7 +107,7 @@ PERL*=perl
 TYPE=cat
 CDD=cd
 COPY=cp -f
-.IF "$(OS)"=="MACOSX" || "$(OS)"=="NETBSD"
+.IF "$(OS)"=="MACOSX" || "$(OS)"=="NETBSD" || "$(OS)"=="OPENBSD"
 COPYRECURSE=-R
 .ELSE #"$(OS)"=="MACOSX"
 COPYRECURSE=-r