Fix repeated words in Classes tutorial (GH-21455)

The phrase "At any time during execution," was repeated twice.

Automerge-Triggered-By: @Mariatta
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Paul McMillan 2020-07-13 18:26:23 -07:00 committed by GitHub
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@ -114,8 +114,8 @@ accessible. "Directly accessible" here means that an unqualified reference to a
name attempts to find the name in the namespace. name attempts to find the name in the namespace.
Although scopes are determined statically, they are used dynamically. At any Although scopes are determined statically, they are used dynamically. At any
time during execution, At any time during execution, there are 3 or 4 nested time during execution, there are 3 or 4 nested scopes whose namespaces are
scopes whose namespaces are directly accessible: directly accessible:
* the innermost scope, which is searched first, contains the local names * the innermost scope, which is searched first, contains the local names
* the scopes of any enclosing functions, which are searched starting with the * the scopes of any enclosing functions, which are searched starting with the