Replace calls to sprintf() with strlcpy() in settings.c.

sprintf() was being used to copy a string constant with
no formatting verbs; just use strlcpy() instead.

Signed-off-by: Dan Cross <patchdev@fat-dragon.org>

src/settings.c

@@ -26,13 +26,13 @@ void settings_menu(struct user_record *user) {
 		s_printf(get_string(221), (user->codepage ? "UTF-8" : "CP437"));
 		switch (user->exteditor) {
 			case 0:
-				sprintf(buffer, "NO");
+				strlcpy(buffer, "NO", sizeof buffer);
 				break;
 			case 1:
-				sprintf(buffer, "YES");
+				strlcpy(buffer, "YES", sizeof buffer);
 				break;
 			case 2:
-				sprintf(buffer, "ASK");
+				strlcpy(buffer, "ASK", sizeof buffer);
 				break;
 		}
 		s_printf(get_string(222), buffer);