ITcl: don't require 'package require Itcl' #3140
Merged
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Close #3136.
Close #3139.
The original code requires 'package require Itcl' to run Itcl
subparser from Tcl parser. However,
itcl::
can be used ina script having no 'package require Itcl' statement.
Suggested by @bigfaceworm.
Signed-off-by: Masatake YAMATO yamato@redhat.com