Changes by: Aleksey Nogin (nogin at metaprl.org)
Date: 2007-03-14 09:57:36 -0700 (Wed, 14 Mar 2007)
Revision: 10217
Log message:

      Use "-" instead of "_" in xterm-escape-begin and xterm-escape-end function
     names; implemented xterm-escape wrapper (that would return an empty string 
     TERM does not have an "xterm-like" value).