Style fixes

Library/.rubocop.yml

@@ -232,6 +232,9 @@ Rails/Presence:
   Enabled: true
 Rails/Present:
   Enabled: true
+  Exclude:
+    # `present?` is defined as `!blank?` wihin this file
+    - "Homebrew/extend/blank.rb"
 Rails/RelativeDateConstant:
   Enabled: true
 Rails/SafeNavigation:

Library/Homebrew/extend/blank.rb

@@ -95,7 +95,7 @@ class Array
   #   [1,2,3].blank? # => false
   #
   # @return [true, false]
-  alias_method :blank?, :empty?
+  alias blank? empty?
 
   sig { returns(T::Boolean) }
   def present? # :nodoc:
@@ -110,7 +110,7 @@ class Hash
   #   { key: 'value' }.blank?  # => false
   #
   # @return [true, false]
-  alias_method :blank?, :empty?
+  alias blank? empty?
 
   sig { returns(T::Boolean) }
   def present? # :nodoc:
@@ -123,7 +123,7 @@ class Symbol
   #
   #   :''.blank?     # => true
   #   :symbol.blank? # => false
-  alias_method :blank?, :empty?
+  alias blank? empty?
 
   sig { returns(T::Boolean) }
   def present? # :nodoc:
@@ -132,7 +132,7 @@ class Symbol
 end
 
 class String
-  BLANK_RE = /\A[[:space:]]*\z/
+  BLANK_RE = /\A[[:space:]]*\z/.freeze
 
   # A string is blank if it's empty or contains whitespaces only:
   #
@@ -153,7 +153,7 @@ class String
       begin
         BLANK_RE.match?(self)
       rescue Encoding::CompatibilityError
-        Regexp.new(BLANK_RE.source.encode(self.encoding), BLANK_RE.options | Regexp::FIXEDENCODING).match?(self)
+        Regexp.new(BLANK_RE.source.encode(encoding), BLANK_RE.options | Regexp::FIXEDENCODING).match?(self)
       end
   end