Rubocop fixes

lib/amazing_print/custom_defaults.rb

@@ -29,7 +29,7 @@ def inspect_object(object)
 
     def usual_rb
       IRB::Irb.class_eval do
-        def output_value(omit = false)
+        def output_value(_omit = false) # rubocop:disable Style/OptionalBooleanParameter
           ap @context.last_value
         rescue NoMethodError
           puts "(Object doesn't support #ai)"

lib/amazing_print/formatters/base_formatter.rb

@@ -49,7 +49,7 @@ def limited(data, width, is_hash: false)
         else
           # Calculate how many elements to be displayed above and below the separator.
           head = limit / 2
-          tail = head - (limit - 1) % 2
+          tail = head - ((limit - 1) % 2)
 
           # Add the proper elements to the temp array and format the separator.
           temp = data[0, head] + [nil] + data[-tail, tail]
@@ -118,13 +118,13 @@ def indented(&blk)
       INDENT_CACHE = (0..100).map { |i| ' ' * i }.map(&:freeze).freeze
 
       def indent(n = indentation)
-        INDENT_CACHE[n] || ' ' * n
+        INDENT_CACHE[n] || (' ' * n)
       end
 
       def outdent
         i = indentation - options[:indent].abs
 
-        INDENT_CACHE[i] || ' ' * i
+        INDENT_CACHE[i] || (' ' * i)
       end
 
       def align(value, width)

spec/methods_spec.rb

@@ -440,7 +440,7 @@ def self.m2; end
     class World
       def self.m1; end
     end
-    out = (Hello.methods & World.methods - Class.methods).ai(plain: true)
+    out = (Hello.methods & (World.methods - Class.methods)).ai(plain: true)
     expect(out).to eq("[\n    [0] m1() Hello\n]")
   end