curses getline()

After going back and forth between prompts causing message lines
to be overwritten and to be skipped, this yoyo might have finally
run out of string.  Fingers crossed....

win/curses/cursmesg.c

@@ -584,6 +584,9 @@ curses_message_win_getline(const char *prompt, char *answer, int buffer)
 #endif
         curs_set(0);
         switch (ch) {
+        case ERR: /* should not happen */
+            *answer = '\0';
+            goto alldone;
         case '\033': /* DOESCAPE */
             /* if there isn't any input yet, return ESC */
             if (len == 0) {
@@ -610,20 +613,25 @@ curses_message_win_getline(const char *prompt, char *answer, int buffer)
             *p_answer = '\0';
             len = 0;
             break;
-        case ERR: /* should not happen */
-            *answer = '\0';
-            goto alldone;
         case '\r':
         case '\n':
             (void) strncpy(answer, p_answer, buffer);
             answer[buffer - 1] = '\0';
             Strcpy(toplines, tmpbuf);
             mesg_add_line(tmpbuf);
+#if 1
+            /* position at end of current line so next message will be
+               written on next line regardless of whether it could fit here */
+            mx = border_space ? (width + 1) : (width - 1);
+            wmove(win, my, mx);
+#else       /* after various other changes, this resulted in getline()
+             * prompt+answer being following by a blank message line */
             if (++my > maxy) {
                 scroll_window(MESSAGE_WIN);
                 my--;
             }
             mx = border_space;
+#endif /*0*/
             goto alldone;
         case '\177': /* DEL/Rubout */
         case KEY_DC: /* delete-character */