tty prompting fix and DUMPLOG of prompts+answers

Update DUMPLOG's message history to include player responses to
most queries.  For tty, both getlin() and yn_function().  For other
interfaces, only yn_function() is covered.  (It's intercepted by a
core routine that can take care of the logging; getlin() isn't.)
Also includes saved messages from previous session(s), for the
interfaces which support that (tty), to fill out the logging when
a game ends shortly after a save/restore cycle.

The tty interface was using pline() to display prompt strings.
Having 'MSGTYPE=hide "#"' or 'MSGTYPE=hide "yn"' in .nethackrc
would suppress many prompt strings (in the two examples mentioned,
entering extended commands or the vast majority of yes/no questions,
respectively) and generally lead to substantial confusion even if
done intentionally, so switch to putstr(WIN_MESSAGE) instead.

src/cmd.c

@@ -4571,11 +4571,12 @@ int x, y, mod;
 }
 
 char
-get_count(allowchars, inkey, maxcount, count)
+get_count(allowchars, inkey, maxcount, count, historical)
 char *allowchars;
 char inkey;
 long maxcount;
 long *count;
+boolean historical; /* whether to include in message history: True => yes */
 {
     char qbuf[QBUFSZ];
     int key;
@@ -4616,10 +4617,19 @@ long *count;
                 Sprintf(qbuf, "Count: %ld", cnt);
                 backspaced = FALSE;
             }
-            pline1(qbuf);
+            /* bypassing pline() keeps intermediate prompt out of
+               DUMPLOG message history */
+            putstr(WIN_MESSAGE, 0, qbuf);
             mark_synch();
         }
     }
+
+    if (historical) {
+        Sprintf(qbuf, "Count: %ld ", *count);
+        (void) key2txt((uchar) key, eos(qbuf));
+        putmsghistory(qbuf, FALSE);
+    }
+
     return key;
 }
 
@@ -4645,7 +4655,7 @@ parse()
     if (!Cmd.num_pad || (foo = readchar()) == Cmd.spkeys[NHKF_COUNT]) {
         long tmpmulti = multi;
 
-        foo = get_count((char *) 0, '\0', LARGEST_INT, &tmpmulti);
+        foo = get_count((char *) 0, '\0', LARGEST_INT, &tmpmulti, FALSE);
         last_multi = multi = tmpmulti;
     }
 #ifdef ALTMETA
@@ -4902,7 +4912,13 @@ yn_function(query, resp, def)
 const char *query, *resp;
 char def;
 {
-    char qbuf[QBUFSZ];
+    char res, qbuf[QBUFSZ];
+#ifdef DUMPLOG
+    extern unsigned saved_pline_index; /* pline.c */
+    unsigned idx = saved_pline_index;
+    /* buffer to hold query+space+formatted_single_char_response */
+    char dumplog_buf[QBUFSZ + 1 + 15]; /* [QBUFSZ+1+7] should suffice */
+#endif
 
     iflags.last_msg = PLNMSG_UNKNOWN; /* most recent pline is clobbered */
 
@@ -4914,7 +4930,18 @@ char def;
         Strcpy(&qbuf[QBUFSZ - 1 - 3], "...");
         query = qbuf;
     }
-    return (*windowprocs.win_yn_function)(query, resp, def);
+    res = (*windowprocs.win_yn_function)(query, resp, def);
+#ifdef DUMPLOG
+    if (idx == saved_pline_index) {
+        /* when idx is still the same as saved_pline_index, the interface
+           didn't put the prompt into saved_plines[]; we put a simplified
+           version in there now (without response choices or default) */
+        Sprintf(dumplog_buf, "%s ", query);
+        (void) key2txt((uchar) res, eos(dumplog_buf));
+        dumplogmsg(dumplog_buf);
+    }
+#endif
+    return res;
 }
 
 /* for paranoid_confirm:quit,die,attack prompting */