TZUTC: -0800
MSGID: 59093.sync_sys@1:103/705 2db9b79a
PID: Synchronet 3.21a-Linux master/48922a15c Dec 17 2025 GCC 12.2.0
TID: SBBSecho 3.34-Linux master/d6a470005 Dec 30 2025 GCC 12.2.0
BBSID: VERT
CHRS: UTF-8 4
FORMAT: flowed
open https://gitlab.synchro.net/main/sbbs/-/issues/1037

In v3.20, when connecting via RLogin with an unrecognized user name, I receive
the following in SyncTERM for Windows (all versions):
```
      Synchronet BBS for Win32  Version 3.20  Copyright 2025 Rob Swindell
UNKNOWN USER: badusername
Starting new user registration ...
[√] HIT your BACKSPACE or DELETE-LEFT key:  
```

But with the new terminal abstraction in Synchronet, the following is
displayed in SyncTERM for Windows (all versions):
```
      Synchronet BBS for Win32  Version 3.21  Copyright 2025 Rob Swindell
UNKNOWN USER: badusername
Starting new user registration ...
[¹] HIT your BACKSPACE or DELETE-LEFT key:  
```

I find this baffling as SyncTERM is only receiving and displaying CP437, but
the char 251 (square root / checkmark) is being translated into a superscript
'1' (U+00B9) - glyph that doesn't even exist in CP437.
--- SBBSecho 3.34-Linux
 * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)
SEEN-BY: 103/13 705 105/81 106/201 124/5016 128/187 129/14 153/757
SEEN-BY: 153/7715 154/10 30 110 203/0 218/700 221/0 226/30 227/114
SEEN-BY: 229/110 112 134 206 317 400 426 428 470 700 705 240/1120
SEEN-BY: 240/5832 263/1 266/512 280/464 5003 5006 291/111 292/8125
SEEN-BY: 301/1 320/219 322/757 341/66 234 342/200 396/45 423/120 460/58
SEEN-BY: 633/267 280 384 410 414 418 420 422 2744 712/848 770/1 902/26
SEEN-BY: 5020/400 5075/35
PATH: 103/705 280/464 633/280 229/426