[PATCH] allow partial replace in string.Template

[Nick Coghlan]

a) Patches are more likely to be looked at if placed on the SF patch tracker.

b) I don't quite see the point, given how easy these are to spell using the 
basic safe_substitute. You're replacing one liners with one-liners.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at email.com   |   Brisbane, Australia
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