[Nvidia-imex] Cookstyle changes

Author: Himani Anil Deshpande

cookbooks/aws-parallelcluster-platform/recipes/install/nvidia_install.rb

@@ -25,4 +25,4 @@
 
 nvidia_dcgm 'install Nvidia datacenter-gpu-manager'
 
-nvidia_imex 'Install Nvidia-imex'
+nvidia_imex 'Install Nvidia-imex'

cookbooks/aws-parallelcluster-platform/resources/nvidia_imex/nvidia_imex_amazon2.rb

@@ -18,5 +18,5 @@
 
 def imex_installed
   # We do not install NVIDIA-Imex for Alinux2 due to restriction on NVIDIA driver
-  return true
-end
+  true
+end

cookbooks/aws-parallelcluster-platform/spec/unit/resources/nvidia_imex_spec.rb

@@ -80,7 +80,7 @@ def self.install(chef_run)
           allow(File).to receive(:exist?).with(imex_binary).and_return(false)
         end
 
-        if platform == 'amazon' && version =='2'
+        if platform == 'amazon' && version == '2'
           it 'is true' do
             expect(resource.imex_installed).to eq(true)
           end
@@ -192,9 +192,9 @@ def self.install(chef_run)
               .with(group: 'root')
               .with(mode: '0755')
             is_expected.not_to create_template("/etc/systemd/system/nvidia-imex.service")
-               .with(source: 'nvidia-imex/nvidia-imex.service.erb')
-               .with(user: 'root')
-               .with(group: 'root')
+              .with(source: 'nvidia-imex/nvidia-imex.service.erb')
+              .with(user: 'root')
+              .with(group: 'root')
               .with(mode: '0644')
             is_expected.not_to install_package('nvidia-imex')
               .with(retries: 3)