wireless-regdb: Do not hardcode 'sforshee' in the certificate commonName

gen-pubcert.sh hardcodes the 'sforshee' common name when generating the
certificate.  Make it depend on REGDB_AUTHOR instead, which defaults to
$(whoami).

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
diff --git a/Makefile b/Makefile
index 2f1ed93..02176ec 100644
--- a/Makefile
+++ b/Makefile
@@ -80,7 +80,7 @@
 
 $(REGDB_PUBCERT): $(REGDB_PRIVKEY)
 	@echo "Generating certificate for $(REGDB_AUTHOR)..."
-	./gen-pubcert.sh $(REGDB_PRIVKEY) $(REGDB_PUBCERT)
+	./gen-pubcert.sh $(REGDB_PRIVKEY) $(REGDB_PUBCERT) $(REGDB_AUTHOR)
 	@echo $(REGDB_PUBKEY) > .custom
 
 
diff --git a/gen-pubcert.sh b/gen-pubcert.sh
index 1a4d579..a7e8538 100755
--- a/gen-pubcert.sh
+++ b/gen-pubcert.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
-if [[ $# -ne 2 ]]; then
-	echo "Usage: $0 priv-key out-file"
+if [[ $# -ne 3 ]]; then
+	echo "Usage: $0 priv-key out-file common-name"
 	exit 1
 fi
 
@@ -13,6 +13,6 @@
 		string_mask = utf8only
 		prompt = no
 		[ req_distinguished_name ]
-		commonName = sforshee
+		commonName = $3
 		EOF
 	)