Fix typo in control-structures.rst

I'm learning Solidity by reading these docs and found this statement confusing. I'm fairly certain that the correct description here is that the *callee* changes get reverted, but the caller is able to react to the failures.

I tested this with the following snippet in Remix, which resulted in a successful transaction when deployed:

```
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.7;

contract A {
    uint public value;

    function a(uint newValue, bool shouldRevert) external {
        value = newValue;
        if (shouldRevert) {
            revert();
        }
    }
}

contract B {
    function b() external {
        A a = new A();
        try a.a(50, false) {
            assert(a.value() == 50);
        } catch {
            assert(false);
        }
        a = new A();
        try a.a(50, true) {
            assert(false);
        } catch {
            assert(a.value() == 0);
        }
    }
}
```
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Braden Watling 2022-01-03 17:22:23 -05:00 committed by GitHub
parent c28f85f1e2
commit 6fe1ee6a8a
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@ -699,7 +699,7 @@ safest action is to revert all changes and make the whole transaction
(or at least call) without effect. (or at least call) without effect.
In both cases, the caller can react on such failures using ``try``/``catch``, but In both cases, the caller can react on such failures using ``try``/``catch``, but
the changes in the caller will always be reverted. the changes in the callee will always be reverted.
.. note:: .. note::