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fix: 12.5: remove unneeded backtick #4503

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fix: 12.5: remove unneeded backtick #4503

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2 changes: 1 addition & 1 deletion src/ch12-05-working-with-environment-variables.md
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Expand Up @@ -58,7 +58,7 @@ they’ll be the same case when we check whether the line contains the query.
First we lowercase the `query` string and store it in a new variable with the
same name, shadowing the original `query`. Calling `to_lowercase` on the query
is necessary so that no matter whether the user’s query is `"rust"`, `"RUST"`,
`"Rust"`, or `"``rUsT``"`, we’ll treat the query as if it were `"rust"` and be
`"Rust"`, or `"rUsT"`, we’ll treat the query as if it were `"rust"` and be
insensitive to the case. While `to_lowercase` will handle basic Unicode, it
won’t be 100 percent accurate. If we were writing a real application, we’d want
to do a bit more work here, but this section is about environment variables,
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