TZUTC: -0700   
   MSGID: 58130.sync_sys@1:103/705 2ca59cad   
   PID: Synchronet 3.21a-Linux master/dd0e146a0 May 28 2025 GCC 12.2.0   
   TID: SBBSecho 3.27-Linux master/dd0e146a0 May 28 2025 GCC 12.2.0   
   BBSID: VERT   
   CHRS: ASCII 1   
   FORMAT: flowed   
   https://gitlab.synchro.net/main/sbbs/-/issues/936#note_7311   
      
   OK, thought I'd share my test:   
      
   ```js   
   var files = [   
   '/opt/sbbs/fido/outbound.00a/00010001.flo',   
   '/opt/sbbs/fido/outbound.00a/00010001.bsy',   
   '/opt/sbbs/fido/outbound.00a/00010001.',   
   ];   
      
   files.forEach(function(file) {   
           var oldregex = file;   
           var newregex = file;   
      
           writeln("FILE:"+file);   
           writeln("OLDREGEX:"+oldregex.replace(/\.[^\.]*?$/, '.bsy'));   
           writeln("NEWREGEX:"+newregex.replace(/\.[^\.]*$/, '.bsy'));   
           writeln("-");   
   });   
   ```   
      
   Result:   
   ```   
   FILE:/opt/sbbs/fido/outbound.00a/00010001.flo   
   OLDREGEX:/opt/sbbs/fido/outbound.00a/00010001.flo   
   NEWREGEX:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   -   
   FILE:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   OLDREGEX:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   NEWREGEX:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   -   
   FILE:/opt/sbbs/fido/outbound.00a/00010001.   
   OLDREGEX:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   NEWREGEX:/opt/sbbs/fido/outbound.00a/00010001.bsy   
   ```   
      
   Seems that regex ungreedy is not working (at least for me on aarch64).   
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