According to Eric Blake on 1/12/2007 9:23 AM:
When you upgraded cygwin, you probably also upgraded bash. Read the
release announcements.
http://cygwin.com/ml/cygwin-announce/2006-12/msg00026.html
According to Larry Hall (Cygwin) on 1/12/2007 9:24 AM:
<http://cygwin.com/ml/cygwin-announce/2006-12/msg00026.html>
According to Matthew Woehlke on 1/12/2007 9:24 AM:
Bash could be different. Did you update bash also? Did you read the
Release Notes?
Ha - not only was my answer first, but it contained BOTH the link and the
textual explanation. I must be the faster typist :)