- tag more functions with gnu format attribute

- fix format string bugs. still some left

code/qcommon/cvar.c

@@ -913,10 +913,9 @@ void	Cvar_Update( vmCvar_t *vmCvar ) {
 	vmCvar->modificationCount = cv->modificationCount;
 	// bk001129 - mismatches.
 	if ( strlen(cv->string)+1 > MAX_CVAR_VALUE_STRING ) 
-	  Com_Error( ERR_DROP, "Cvar_Update: src %s length %d exceeds MAX_CVAR_VALUE_STRING",
+	  Com_Error( ERR_DROP, "Cvar_Update: src %s length %zd exceeds MAX_CVAR_VALUE_STRING",
 		     cv->string, 
-		     strlen(cv->string), 
-		     sizeof(vmCvar->string) );
+		     strlen(cv->string));
 	// bk001212 - Q_strncpyz guarantees zero padding and dest[MAX_CVAR_VALUE_STRING-1]==0 
 	// bk001129 - paranoia. Never trust the destination string.
 	// bk001129 - beware, sizeof(char*) is always 4 (for cv->string).