package/cvs: add CVS_CPE_ID_VENDOR

cpe:2.3:a:gnu:cvs is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Agnu%3Acvs

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
diff --git a/package/cvs/cvs.mk b/package/cvs/cvs.mk
index 6f83ca6..3d01f33 100644
--- a/package/cvs/cvs.mk
+++ b/package/cvs/cvs.mk
@@ -10,6 +10,7 @@
 CVS_SITE = http://snapshot.debian.org/archive/debian/20141023T043132Z/pool/main/c/cvs
 CVS_LICENSE = GPL-1.0+, LGPL-2.0+, LGPL-2.1+ (glob)
 CVS_LICENSE_FILES = COPYING COPYING.LIB lib/glob-libc.h
+CVS_CPE_ID_VENDOR = gnu
 CVS_DEPENDENCIES = ncurses
 
 CVS_CONF_ENV = \