align error message for invalid verbosity value

[adamralph]

Before

> minver --auto-increment foo
MinVer: error : Invalid auto increment 'foo'. Valid values are major, minor, or patch (default)
> minver --verbosity foo
MinVer: error : Invalid verbosity 'foo'. The value must be e[rror], w[arn], i[nfo] (default), d[ebug], or t[race] (case insensitive).

After

> minver --auto-increment foo
MinVer: error : Invalid auto increment 'foo'. Valid values are major, minor, or patch (default)
> minver --verbosity foo
MinVer: error : Invalid verbosity 'foo'. Valid values are e[rror], w[arn], i[nfo] (default), d[ebug], or t[race] (case insensitive).

And similar for the regular MinVer package.

[adamralph]

Released in 2.4.0-beta.1 —

• MinVer
• minver-cli