fromWei Returns "0." for 0 and Any Denomination Other Than Wei

[danforbes]

When fromWei is called with 0 and any denomination other than wei, it returns the value "0." The trailing decimal point is unnecessary and should not be included.

[whitemoshui]

Hi, may I work on researching and fixing this issue? It looks like a good-first-issue. Also, I'd like to ask if this kind of change would be considered a breaking change?

[TemirlanBasitov]

@danforbes we can add check. if the result is "0." and, if so, return "0" instead.

[mconnelly8]

Hey @whitemoshui, go ahead and take a stab at this. This wouldn't be considered a breaking change.

We'd like to get this implemented soon, so let us know if you have any questions.

[whitemoshui]

Hey @whitemoshui, go ahead and take a stab at this. This wouldn't be considered a breaking change.

We'd like to get this implemented soon, so let us know if you have any questions.

I saw there is a PR to fix. If he doesn't response, I can take over this issue later.