#2086 wish does not know about tcl_wordchars

[Francois VOGEL]

tcl_wordchars and tcl_nonwordchars are unknown to
wish:

1 % info patchlevel
8.4.13
2 % puts $tcl_wordchars
can't read "tcl_wordchars": no such variable
3 % catch {tcl_endOfWord}
1
4 % puts $tcl_wordchars
\S

Though catch {tcl_endOfWord} make wish aware of these
variables, this is only a workaround. These variables
should be auto-loaded along with the commands they
control.

See also:
http://groups.google.fr/group/comp.lang.tcl/browse_thr
ead/thread/659fd6c1f41d9a81/4a3c30d2c97604cc

Francois