Rename Rspec pre-push hook to RSpec

This matches the name of the actual tool. While other tools we
incorporate use lowercase for acronyms (e.g. `Jscs`), in this case it
seems appropriate to stick with the name of the tool as it isn't an
acronym.

Author: sds

CHANGELOG.md

@@ -36,7 +36,7 @@
 * Don't clear working tree after pre-commit hook when only submodule changes
   are present
 * Change hook summary message to mention warnings if there were any
-* Add `Rspec` pre-push hook that runs Rspec tests before pushing to remote
+* Add `RSpec` pre-push hook that runs RSpec tests before pushing to remote
 * Add `ProtectedBranches` pre-push hook that prevents destructive pushes
   (deletions or force pushes) to specified branches
 * Add `SpellCheck` commit-msg hook to check commit messages for misspelled words

config/default.yml

@@ -542,9 +542,9 @@ PrePush:
     description: 'Checking for illegal pushes to protected branches'
     branches: ['master']
 
-  Rspec:
+  RSpec:
     enabled: false
-    description: 'Running rspec test suite'
+    description: 'Running RSpec test suite'
     required_executable: 'rspec'
 
 # Hooks that run during `git rebase`, before any commits are rebased.

lib/overcommit/hook/pre_push/rspec.rb

@@ -1,6 +1,6 @@
 module Overcommit::Hook::PrePush
   # Runs `rspec` test suite before push
-  class Rspec < Base
+  class RSpec < Base
     def run
       result = execute(command)
       return :pass if result.success?

spec/overcommit/hook/pre_push/rspec_spec.rb

@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Overcommit::Hook::PrePush::Rspec do
+describe Overcommit::Hook::PrePush::RSpec do
   let(:config)  { Overcommit::ConfigurationLoader.default_configuration }
   let(:context) { double('context') }
   subject { described_class.new(config, context) }
@@ -55,12 +55,12 @@
 
           Failures:
 
-            1) Overcommit::Hook::PrePush::Rspec when rspec exits unsuccessfully with a runtime error should fail
+            1) Overcommit::Hook::PrePush::RSpec when rspec exits unsuccessfully with a runtime error should fail
                Failure/Error: it { should fail_hook }
                  expected that the hook would fail
                # ./spec/overcommit/hook/pre_push/rspec_spec.rb:45:in `block (4 levels) in <top (required)>'
 
-            2) Overcommit::Hook::PrePush::Rspec when rspec exits unsuccessfully with a test failure should fail
+            2) Overcommit::Hook::PrePush::RSpec when rspec exits unsuccessfully with a test failure should fail
                Failure/Error: it { should fail_hook }
                  expected that the hook would fail
                # ./spec/overcommit/hook/pre_push/rspec_spec.rb:57:in `block (4 levels) in <top (required)>'
@@ -70,8 +70,8 @@
 
           Failed examples:
 
-          rspec ./spec/overcommit/hook/pre_push/rspec_spec.rb:45 # Overcommit::Hook::PrePush::Rspec when rspec exits unsuccessfully with a runtime error should fail
-          rspec ./spec/overcommit/hook/pre_push/rspec_spec.rb:57 # Overcommit::Hook::PrePush::Rspec when rspec exits unsuccessfully with a test failure should fail
+          rspec ./spec/overcommit/hook/pre_push/rspec_spec.rb:45 # Overcommit::Hook::PrePush::RSpec when rspec exits unsuccessfully with a runtime error should fail
+          rspec ./spec/overcommit/hook/pre_push/rspec_spec.rb:57 # Overcommit::Hook::PrePush::RSpec when rspec exits unsuccessfully with a test failure should fail
         EOS
         # rubocop:enable Metrics/LineLength
       end