cve-check: slightly more verbose warning when adding the same package twice

Occasionally the cve-check tool will warn that it is adding the same
package twice.  Knowing what this package is might be the first step
towards understanding where this message comes from.

(From OE-Core rev: 699863be46fab91d5729fce1dc5b795761247f98)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/cve_check.py

@@ -172,7 +172,7 @@ def cve_check_merge_jsons(output, data):
 
     for product in output["package"]:
         if product["name"] == data["package"][0]["name"]:
-            bb.error("Error adding the same package twice")
+            bb.error("Error adding the same package %s twice" % product["name"])
             return
 
     output["package"].append(data["package"][0])