arogue7: fix the backspace key in prompts.

md_readchar() now translates KEY_BACKSPACE to the erase character.

XRogue seems to work already.

arogue7/mdport.c

@@ -1117,6 +1117,10 @@ md_readchar(WINDOW *win)
 #endif
             case KEY_NPAGE  : ch = 'n'; break;
 
+#ifdef KEY_BACKSPACE
+            case KEY_BACKSPACE: ch = md_erasechar(); break;
+#endif
+
 #ifdef KEY_B1
             case KEY_B1     : ch = 'h'; break;
             case KEY_C2     : ch = 'j'; break;

arogue7/options.c

@@ -216,7 +216,7 @@ WINDOW *win;
      * loop reading in the string, and put it in a temporary buffer
      */
     for (sp = buf;
-	(c = wgetch(win)) != '\n'	&& 
+	(c = md_readchar(win)) != '\n'	&& 
 	c != '\r'			&& 
 	c != '\033'			&& 
 	c != '\007'			&&