Prefer Augmented Assignment

Detects non-idiomatic statements that can be written using augmented assignment operators like +=, -=, etc.

Why is it bad?

Using augmented assignment operations improves the readability of the source code and reduces the risk of mistakes, such as those that occur during copy-pasting and refactoring code.

Example

msgValue = (msgValue - ctx.readForwardFee());

Use instead:

msgValue -= ctx.readForwardFee());