Fix MSI build after commit 7a9f6df7

Change-Id: Ib659477a2358b14fbacc1638394c783995272eb5
Reviewed-on: https://gerrit.libreoffice.org/69466Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

readlicense_oo/Package_license.mk

@@ -9,7 +9,9 @@
 
 $(eval $(call gb_Package_Package,readlicense_oo_license,$(call gb_CustomTarget_get_workdir,readlicense_oo/license)))
 
-ifneq ($(OS),WNT)
+ifeq ($(OS),WNT)
+$(eval $(call gb_Package_add_file,readlicense_oo_license,license.txt,license.txt))
+else
 ifneq ($(OS),MACOSX)
 $(eval $(call gb_Package_add_file,readlicense_oo_license,LICENSE,LICENSE))
 else