Make this WARNS=2 clean by

- using (intmax_t) and %j
	- giving a non-empty format string to msg()

Include <stdint.h> directly instead of depending on <inttypes.h>
to do it.

Tested by:	make universe

sbin/dump/Makefile

@@ -16,7 +16,6 @@
 PROG=	dump
 LINKS=	${BINDIR}/dump ${BINDIR}/rdump
 CFLAGS+=-DRDUMP
-WARNS=	0
 SRCS=	itime.c main.c optr.c dumprmt.c tape.c traverse.c unctime.c cache.c
 MAN=	dump.8
 MLINKS=	dump.8 rdump.8

sbin/dump/dumprmt.c

@@ -159,7 +159,7 @@ rmtgetconn(void)
 		tuser = pwd->pw_name;
 	if ((rmt = getenv("RMT")) == NULL)
 		rmt = _PATH_RMT;
-	msg("");
+	msg("%s", "");
 	rmtape = rcmd(&rmtpeer, (u_short)sp->s_port, pwd->pw_name,
 		      tuser, rmt, &errfd);
 	if (rmtape < 0) {

sbin/dump/main.c

@@ -62,9 +62,9 @@ static const char rcsid[] =
 #include <errno.h>
 #include <fcntl.h>
 #include <fstab.h>
-#include <inttypes.h>
 #include <limits.h>
 #include <signal.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -545,8 +545,9 @@ main(int argc, char *argv[])
 	if (tend_writing - tstart_writing == 0)
 		msg("finished in less than a second\n");
 	else
-		msg("finished in %d seconds, throughput %jd KBytes/sec\n",
-		    tend_writing - tstart_writing, (intmax_t)(spcl.c_tapea /
+		msg("finished in %jd seconds, throughput %jd KBytes/sec\n",
+		    (intmax_t)tend_writing - tstart_writing, 
+		    (intmax_t)(spcl.c_tapea / 
 		    (tend_writing - tstart_writing)));
 
 	putdumptime();