Include <string.h> to prototype strcpy(3). While I'm here, make use

of the new RCSID macros.

MFC after:	3 days

lib/libc/net/inet_ntoa.c

@@ -31,15 +31,16 @@
  * SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)inet_ntoa.c	8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__RCSID("@(#)inet_ntoa.c	8.1 (Berkeley) 6/4/93");
+__FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <stdio.h>
+#include <string.h>
 
 /*
  * Convert network-format internet address