diff from frantisek holop (minusf (at) obiit.org)
-/* $OpenBSD: string.h,v 1.28 2014/06/13 02:12:17 matthew Exp $ */
+/* $OpenBSD: string.h,v 1.29 2014/08/10 02:49:24 guenther Exp $ */
/* $NetBSD: string.h,v 1.6 1994/10/26 00:56:30 cgd Exp $ */
/*-
char *stpncpy(char *__restrict, const char *__restrict, size_t);
char *strndup(const char *, size_t);
size_t strnlen(const char *, size_t);
-#endif
-
-#if __POSIX_VISIBLE >= 200809
char *strsignal(int);
#endif