Look for unix find command in multiple places

Look for unix find command in multiple places

Not tagged yet in case it should not go in 3.2.

Look for the unix find command in a list of directories instead of in only one place.  This way Jeff can install cygwin in c:\tools\cygwin and Ken can have it in C:\cygwin.  The two places in the list are for those two possibilities.  c:\cygwin\bin and c:\tools\cygwin\bin.

Move some prints below where logging starts, so the messages will be in the log.

Ticket: new
Target_Version: 1.6.1

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@19534 dc483132-0cff-0310-8789-dd5450dbe970