Fix account check #107
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Fix account check #107
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Problem: Probably the book meant to forbid accounts other than the hardcoded address, but it's actually doing the opposite: allowing any address other than the hardcoded one. Solution: Change `==` to `!=`.
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Problem: Probably the book meant to forbid accounts other than the hardcoded address, but it's actually doing the opposite: allowing any address other than the hardcoded one.
Solution: Change
==to!=.