-------------------------------------------
tcl function: editfile <file> -- edit current tcl script
-------------------------------------------
keyboard equivalent: none

Edit the tcl script using a basic editor (tries
TextEdit, gedit, nedit, xedit in that order).  To
cause the editor to be vi inside a popped-up
gterm or xterm, set this environment variable:

  export CSURFEDITORVIGTERM=1
       *or*
  setenv CSURFEDITORVIGTERM

