[erlang-questions] handle_info stopped crashing if no match?

[Max Lapshin]

Btw,   https://github.com/erlang/otp/pull/1346#discussion_r101742522

"*bjorng <https://github.com/bjorng> *on Feb 17, 2017
<https://github.com/erlang/otp/pull/1346#discussion_r101742522> Contributor

Use =:= instead of ==."



Why using =:= is better?
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