Fix leak of keybuf in recv_msg_userauth_pk_ok, courtesy of Klocwork

--HG--
extra : convert_revision : 9c39c3f447a47f61606df5d4bee364a449f12e18

cli-authpubkey.c

@@ -60,8 +60,8 @@ void cli_pubkeyfail() {
 
 void recv_msg_userauth_pk_ok() {
 
-	struct SignKeyList *keyitem;
-	buffer* keybuf;
+	struct SignKeyList *keyitem = NULL;
+	buffer* keybuf = NULL;
 	char* algotype = NULL;
 	unsigned int algolen;
 	int keytype;
@@ -121,6 +121,8 @@ void recv_msg_userauth_pk_ok() {
 	} else {
 		TRACE(("That was whacky. We got told that a key was valid, but it didn't match our list. Sounds like dodgy code on Dropbear's part"))
 	}
+	
+	buf_free(keybuf);
 
 	TRACE(("leave recv_msg_userauth_pk_ok"))
 }