http://bugs.winehq.org/show_bug.cgi?id=21144
--- Comment #2 from Dan Kegel dank@kegel.com 2009-12-25 09:35:05 --- Running with @echo off gets rid of the problem. I guess the command echoing code prints an extra newline before each command being echoed. Maybe changing WCMD_show_prompt like this would do the trick? (I'd try it but I'm on a netbook...)
327 q = out_string; + *q++ = '\r'; + *q++ = '\n'; 328 *q = '\0';