* nsf.c, methods.test: Cont'd uplevel reform to sanitize the single-arg case (in light of recent changes to 8.7, TIP 515 and for the sake of…
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* nsf.c, methods.test: Cont'd uplevel reform to sanitize the single-arg case (in light of recent changes to 8.7, TIP 515 and for the sake of XOTcl 1 compatibility): A single arg to uplevel won't be inspected for a level specifier anymore; added tests and TODOs
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