Inaccurate message for Naming/Uncommunicative<x>ParamName

[jlfaber]

The current message is <x> parameter must be longer than <n> characters.

This is inaccurate because the names must be at least n characters long, not longer than that.

For example, if the method param name min is set to 3 (the default), using a name like xx will result in the cop message Method parameter must be longer than 3 characters. But, in fact, names like arg and foo are acceptable even though they are not longer than 3 characters.

I suggest changing the message to <x> parameter must be at least <n> characters long.

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RuboCop version

$ rubocop -V
0.53.0 (using Parser 2.5.0.4, running on ruby 2.5.0 x86_64-darwin16)