Don't attempt to read unused proc parameters

lib/pry/cli.rb

@@ -191,7 +191,7 @@ Pry::CLI.add_options do
     Pry.config.requires << file
   end
 
-  on :I=, "Add a path to the $LOAD_PATH", as: Array, delimiter: ":" do |load_path|
+  on(:I=, "Add a path to the $LOAD_PATH", as: Array, delimiter: ":") do
     load_path.map! do |path|
       /\A\.\// =~ path ? path : File.expand_path(path)
     end

lib/pry/config/behavior.rb

@@ -163,8 +163,8 @@ class Pry
 
       def eager_load!
         default = @default
-        while default
-          default.memoized_methods.each { |_method| self[key] = default.public_send(key) } if default.respond_to?(:memoized_methods)
+        while default && default.respond_to?(:memoized_methods)
+          default.memoized_methods.each { self[key] = default.public_send(key) }
           default = @default.default
         end
       end

lib/pry/slop/option.rb

@@ -45,7 +45,7 @@ class Pry::Slop
         integer: proc { |v| value_to_integer(v) },
         float: proc { |v| value_to_float(v) },
         range: proc { |v| value_to_range(v) },
-        count: proc { |_v| @count }
+        count: proc { @count }
       }
 
       if long && long.size > @slop.config[:longest_flag]

spec/code_spec.rb

@@ -30,19 +30,19 @@ describe Pry::Code do
     end
 
     specify 'check for files relative to origin pwd' do
-      Dir.chdir('spec') do |_f|
+      Dir.chdir('spec') do
         expect(Pry::Code.from_file('spec/' + File.basename(__FILE__)).code_type).to eq :ruby
       end
     end
 
     specify 'check for Ruby files relative to origin pwd with `.rb` omitted' do
-      Dir.chdir('spec') do |_f|
+      Dir.chdir('spec') do
         expect(Pry::Code.from_file('spec/' + File.basename(__FILE__, '.*')).code_type).to eq :ruby
       end
     end
 
     specify 'find files that are relative to the current working directory' do
-      Dir.chdir('spec') do |_f|
+      Dir.chdir('spec') do
         expect(Pry::Code.from_file(File.basename(__FILE__)).code_type).to eq :ruby
       end
     end

spec/pry_output_spec.rb

@@ -7,19 +7,19 @@ describe Pry do
     end
 
     it "should catch serialization exceptions" do
-      Pry.config.print = lambda { |*_a| raise "catch-22" }
+      Pry.config.print = proc { raise "catch-22" }
 
       expect { mock_pry("1") }.to_not raise_error
     end
 
     it "should display serialization exceptions" do
-      Pry.config.print = lambda { |*_a| raise "catch-22" }
+      Pry.config.print = proc { raise "catch-22" }
 
       expect(mock_pry("1")).to match(/\(pry\) output error: #<RuntimeError: catch-22>/)
     end
 
     it "should catch errors serializing exceptions" do
-      Pry.config.print = lambda do |*_a|
+      Pry.config.print = proc do
         ex = Exception.new("catch-22")
         class << ex
           def inspect; raise ex; end