Remove unnecessary termcap.h includes inherited from extern.h and other

unneeded headers.  While I'm there, make function definations ANSI
prototypes.

usr.bin/tset/extern.h

@@ -34,8 +34,6 @@
  *	$FreeBSD$
  */
 
-#include <termcap.h>
-
 extern struct termios mode, oldmode;
 extern int Columns, isreset, Lines;
 extern int erasech, intrchar, killch;

usr.bin/tset/map.c

@@ -75,9 +75,7 @@ MAP *cur, *maplist;
  * The baud rate tests are: >, <, @, =, !
  */
 void
-add_mapping(port, arg)
-	const char *port;
-	char *arg;
+add_mapping(const char *port, char *arg)
 {
 	MAP *mapp;
 	char *copy, *p, *termp;
@@ -190,8 +188,7 @@ badmopt:		errx(1, "illegal -m option format: %s", copy);
  * 'type'.
  */
 const char *
-mapped(type)
-	const char *type;
+mapped(const char *type)
 {
 	MAP *mapp;
 	int match;
@@ -240,8 +237,7 @@ SPEEDS speeds[] = {
 };
 
 speed_t
-tset_baudrate(rate)
-	char *rate;
+tset_baudrate(char *rate)
 {
 	SPEEDS *sp;
 	speed_t speed;

usr.bin/tset/misc.c

@@ -42,15 +42,12 @@ static const char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/9/93";
 #include <err.h>
 #include <fcntl.h>
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include <unistd.h>
 
 #include "extern.h"
 
 void
-cat(file)
-	char *file;
+cat(char *file)
 {
 	register int fd, nr, nw;
 	char buf[1024];
@@ -67,8 +64,7 @@ cat(file)
 }
 
 int
-outc(c)
-	int c;
+outc(int c)
 {
 	return putc(c, stderr);
 }

usr.bin/tset/set.c

@@ -40,6 +40,7 @@ static const char sccsid[] = "@(#)set.c	8.2 (Berkeley) 2/28/94";
 #endif
 
 #include <stdio.h>
+#include <termcap.h>
 #include <termios.h>
 #include <unistd.h>
 
@@ -54,7 +55,7 @@ int	set_tabs(void);
  * a child program dies in raw mode.
  */
 void
-reset_mode()
+reset_mode(void)
 {
 	tcgetattr(STDERR_FILENO, &mode);
 
@@ -155,7 +156,7 @@ reset_mode()
  * entry and command line and update their values in 'mode'.
  */
 void
-set_control_chars()
+set_control_chars(void)
 {
 	char *bp, *p, bs_char, buf[1024];
 
@@ -192,8 +193,7 @@ set_control_chars()
  * uppercase to internal lowercase.
  */
 void
-set_conversions(usingupper)
-	int usingupper;
+set_conversions(int usingupper)
 {
 	if (tgetflag("UC") || usingupper) {
 #ifdef IUCLC
@@ -238,7 +238,7 @@ set_conversions(usingupper)
 
 /* Output startup string. */
 void
-set_init()
+set_init(void)
 {
 	char *bp, buf[1024];
 	int settle;
@@ -282,7 +282,7 @@ set_init()
  * Return nonzero if we set any tab stops, zero if not.
  */
 int
-set_tabs()
+set_tabs(void)
 {
 	int c;
 	char *capsp, *clear_tabs;

usr.bin/tset/term.c

@@ -45,6 +45,7 @@ static const char sccsid[] = "@(#)term.c	8.1 (Berkeley) 6/9/93";
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <termcap.h>
 #include <unistd.h>
 #include <ttyent.h>
 #include "extern.h"
@@ -59,8 +60,7 @@ char	*ttys(char *);
  * its termcap entry.
  */
 const char *
-get_termcap_entry(userarg, tcapbufp)
-	char *userarg, **tcapbufp;
+get_termcap_entry(char *userarg, char **tcapbufp)
 {
 	struct ttyent *t;
 	int rval;
@@ -125,8 +125,7 @@ found:	if ((p = getenv("TERMCAP")) != NULL && *p != '/')
 
 /* Prompt the user for a terminal type. */
 const char *
-askuser(dflt)
-	const char *dflt;
+askuser(const char *dflt)
 {
 	static char answer[256];
 	char *p;

usr.bin/tset/tset.c

@@ -53,6 +53,7 @@ static const char sccsid[] = "@(#)tset.c	8.1 (Berkeley) 6/9/93";
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <termcap.h>
 #include <termios.h>
 #include <unistd.h>
 

usr.bin/tset/wrterm.c

@@ -53,8 +53,7 @@ static const char sccsid[] = "@(#)wrterm.c	8.1 (Berkeley) 6/9/93";
  * shell problems and omitting empty fields.
  */
 void
-wrtermcap(bp)
-	char *bp;
+wrtermcap(char *bp)
 {
 	register int ch;
 	register char *p;