Fix minitest warnings

[vbrazo]

Fix minitest warnings:

/root/faker-ruby/faker/test/test_faker_music.rb:37: warning: nested repeat operator '?' and '*' was replaced with '*' in regular expression: /([A-Z])*(b|#){0,1}*(m){0,1}/

/root/faker-ruby/faker/test/test_faker_music.rb:45: warning: nested repeat operator '?' and '*' was replaced with '*' in regular expression: /([A-Z])*(b|#){0,1}*([a-zA-Z0-9]{0,4})/

/root/faker-ruby/faker/test/test_helper.rb:6:in `<top (required)>': [DEPRECATION] ::[] is deprecated. Use ::new instead.

This PR is related to this issue #1206.

[coveralls]

Pull Request Test Coverage Report for Build 2182

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage remained the same at 99.65%

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Files with Coverage Reduction	New Missed Lines	%
lib/faker/time.rb	7	100.0%

Totals
Change from base Build 2173:	0.0%
Covered Lines:	2278
Relevant Lines:	2286

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💛 - Coveralls