removed all instances of old opts[:arg_string]

lib/pry/default_commands/basic.rb

@@ -23,7 +23,7 @@ class Pry
       command "import", "Import a command set" do |command_set_name|
         next output.puts "Provide a command set name" if command_set.nil?
 
-        set = target.eval(opts[:arg_string])
+        set = target.eval(arg_string)
         Pry.active_instance.commands.import set
       end
 

lib/pry/extended_commands/experimental.rb

@@ -14,7 +14,7 @@ class Pry
       end
 
       command "play-string", "Play a string as input" do
-        Pry.active_instance.input = StringIO.new(opts[:arg_string])
+        Pry.active_instance.input = StringIO.new(arg_string)
       end
 
       command "play-method", "Play a method source as input" do |*args|

lib/pry/extended_commands/user_command_api.rb

@@ -6,10 +6,10 @@ class Pry
       command "define-command", "To honor Mon-Ouie" do |arg|
         next output.puts("Provide an arg!") if arg.nil?
 
-        prime_string = "command #{opts[:arg_string]}\n"
+        prime_string = "command #{arg_string}\n"
         command_string = Pry.active_instance.r(target, prime_string)
 
-        opts[:eval_string].replace <<-HERE
+        eval_string.replace <<-HERE
           _pry_.commands.instance_eval do
             #{command_string}
           end