package/snort: add SNORT_CPE_ID_VENDOR

cpe:2.3:a:snort:snort is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/snort/snort.mk

@@ -8,6 +8,7 @@ SNORT_VERSION = 2.9.17
 SNORT_SITE = https://www.snort.org/downloads/snort
 SNORT_LICENSE = GPL-2.0
 SNORT_LICENSE_FILES = LICENSE COPYING
+SNORT_CPE_ID_VENDOR = snort
 
 SNORT_DEPENDENCIES = libpcap libdnet daq pcre zlib host-pkgconf