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Rollup merge of #34099 - markrcote:functions-copyedit, r=steveklabnik

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Add missing space before parenthesis.
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Steve Klabnik 2016-06-07 10:43:57 -04:00
commit a41de7f8da
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src/doc/book/functions.md
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@ -249,7 +249,7 @@ stack backtrace:
If you need to override an already set `RUST_BACKTRACE`,
in cases when you cannot just unset the variable,
then set it to `0` to avoid getting a backtrace.
Any other value(even no value at all) turns on backtrace.
Any other value (even no value at all) turns on backtrace.
```text
$ export RUST_BACKTRACE=1