Document Regexp#multiline? [ci-skip]
`Regexp#multiline?` has been publicized in the Active Support Core Extensions guide for a while now. This commit adds matching API docs.
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# frozen_string_literal: true
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class Regexp #:nodoc:
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class Regexp
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# Returns +true+ if the regexp has the multiline flag set.
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#
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# (/./).multiline? # => false
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# (/./m).multiline? # => true
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#
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# Regexp.new(".").multiline? # => false
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# Regexp.new(".", Regexp::MULTILINE).multiline? # => true
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def multiline?
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options & MULTILINE == MULTILINE
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end
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