extern uschar *string_copylc(uschar *);
extern uschar *string_copynlc(uschar *, int);
extern uschar *string_dequote(uschar **);
-extern BOOL string_format(uschar *, int, const char *, ...) PRINTF_FUNCTION(3,4);
+extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
extern uschar *string_format_size(int, uschar *);
extern int string_interpret_escape(uschar **);
extern int string_is_ip_address(uschar *, int *);