Fix Style/IndentationWidth cop violations

spec/lib/file_size_validator_spec.rb

@@ -9,9 +9,9 @@ describe 'Gitlab::FileSizeValidatorSpec' do
     let(:options) { { maximum: 10, attributes: { attachment: attachment } } }
     it 'attachment exceeds maximum limit' do
-        allow(attachment).to receive(:size) { 100 }
-        validator.validate_each(note, :attachment, attachment)
-        expect(note.errors).to have_key(:attachment)
+      allow(attachment).to receive(:size) { 100 }
+      validator.validate_each(note, :attachment, attachment)
+      expect(note.errors).to have_key(:attachment)
     end
     it 'attachment under maximum limit' do

spec/lib/gitlab/backend/grack_auth_spec.rb

@@ -121,7 +121,7 @@ describe Grack::Auth do
               context "when the user isn't blocked" do
                 before do
-                 expect(Rack::Attack::Allow2Ban).to receive(:reset)
+                  expect(Rack::Attack::Allow2Ban).to receive(:reset)
                 end
                 it "responds with status 200" do

spec/lib/gitlab/markdown/label_reference_filter_spec.rb

@@ -127,7 +127,7 @@ module Gitlab::Markdown
       it 'gracefully handles non-references matching the pattern' do
         exp = act = '(format nil "~0f" 3.0) ; 3.0'
         expect(filter(act).to_html).to eq exp
-     end
+      end
     end
   end
 end

spec/services/projects/update_service_spec.rb

@@ -11,10 +11,10 @@ describe Projects::UpdateService do
     context 'should be private when updated to private' do
       before do
-       @created_private = @project.private?
-       @opts.merge!(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
-       update_project(@project, @user, @opts)
+        @created_private = @project.private?
+        @opts.merge!(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
+        update_project(@project, @user, @opts)
       end
       it { expect(@created_private).to be_truthy }