Upgrade RuboCop to support Ruby 2.5 syntax

Author: mattbrictson

.rubocop.yml

@@ -18,12 +18,12 @@ Style/ClassAndModuleChildren:
   Enabled: false
 Style/DoubleNegation:
   Enabled: false
-Style/FileName:
+Naming/FileName:
   Exclude:
     - "Dangerfile"
-Style/IndentHeredoc:
+Layout/IndentHeredoc:
   Enabled: false
-Style/SpaceAroundEqualsInParameterDefault:
+Layout/SpaceAroundEqualsInParameterDefault:
   EnforcedStyle: no_space
 Style/StringLiterals:
   EnforcedStyle: double_quotes
@@ -47,7 +47,7 @@ Metrics/CyclomaticComplexity:
   Enabled: false
 Metrics/MethodLength:
   Enabled: false
-Style/PredicateName:
+Naming/PredicateName:
   Enabled: false
 Metrics/LineLength:
   Enabled: false
@@ -59,5 +59,5 @@ Metrics/ClassLength:
   Enabled: false
 Metrics/ModuleLength:
   Enabled: false
-Style/AccessorMethodName:
+Naming/AccessorMethodName:
   Enabled: false

.rubocop_todo.yml

@@ -439,7 +439,7 @@ Style/MethodDefParentheses:
 # Offense count: 3
 # Configuration parameters: SupportedStyles.
 # SupportedStyles: snake_case, camelCase
-Style/MethodName:
+Naming/MethodName:
   EnforcedStyle: snake_case
   Exclude:
     - 'test/unit/test_color.rb'
@@ -460,7 +460,7 @@ Style/NumericPredicate:
     - 'lib/sshkit/command.rb'
 
 # Offense count: 1
-Style/OpMethod:
+Naming/BinaryOperatorParameterName:
   Exclude:
     - 'lib/sshkit/host.rb'
 
@@ -611,7 +611,7 @@ Style/UnneededPercentQ:
 # Offense count: 1
 # Configuration parameters: EnforcedStyle, SupportedStyles.
 # SupportedStyles: snake_case, normalcase, non_integer
-Style/VariableNumber:
+Naming/VariableNumber:
   Exclude:
     - 'test/unit/backends/test_connection_pool.rb'
 

sshkit.gemspec

@@ -32,7 +32,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency('minitest-reporters')
   gem.add_development_dependency('rainbow', '~> 2.2.2')
   gem.add_development_dependency('rake')
-  gem.add_development_dependency('rubocop', "~> 0.49.1")
+  gem.add_development_dependency('rubocop', "~> 0.52.0")
   gem.add_development_dependency('mocha')
 
   gem.add_development_dependency('bcrypt_pbkdf')