Fix curses clear() usage.

svn path=/head/; revision=34720

vietnamese/vnless/files/patch-funcs.h

@@ -0,0 +1,7 @@
+--- funcs.h.orig	Mon Feb 24 12:45:37 1992
++++ funcs.h	Sat May 20 01:41:19 2000
+@@ -54,3 +54,3 @@
+ 	public void vbell ();
+-	public void clear ();
++	public void clearscr ();
+ 	public void clear_eol ();

vietnamese/vnless/files/patch-prim.c

@@ -0,0 +1,38 @@
+--- prim.c.orig	Mon Feb 24 12:45:40 1992
++++ prim.c	Sat May 20 01:42:18 2000
+@@ -110,7 +110,7 @@
+ 			 *    but we don't yet know if that will happen. }}
+ 			 */
+ 			if (top_scroll == 2)
+-				clear();
++				clearscr();
+ 			home();
+ 			force = 1;
+ 		} else
+@@ -132,7 +132,7 @@
+ 			if (top_scroll)
+ 			{
+ 				if (top_scroll == 2)
+-					clear();
++					clearscr();
+ 				home();
+ 			} else if (!first_time)
+ 			{
+@@ -352,7 +352,7 @@
+ 	}
+ 	lastmark();
+ 	pos = ch_tell();
+-	clear();
++	clearscr();
+ 	pos_clear();
+ 	add_back_pos(pos);
+ 	back(sc_height - 1, pos, 0, 0);
+@@ -503,7 +503,7 @@
+ 			 * More than a screenful back.
+ 			 */
+ 			lastmark();
+-			clear();
++			clearscr();
+ 			pos_clear();
+ 			add_back_pos(npos);
+ 		}

vietnamese/vnless/files/patch-screen.c

@@ -0,0 +1,9 @@
+--- screen.c.orig	Mon Feb 24 12:45:41 1992
++++ screen.c	Sat May 20 01:40:56 2000
+@@ -481,5 +481,5 @@
+  */
+ 	public void
+-clear()
++clearscr()
+ {
+ 	tputs(sc_clear, sc_height, putchr);