Cosmetic fixes

src/Composer/Command/SearchCommand.php

@@ -26,7 +26,7 @@ class SearchCommand extends Command
     {
         $this
             ->setName('search')
-            ->setDescription('search for packages')
+            ->setDescription('Search for packages')
             ->setDefinition(array(
                 new InputArgument('tokens', InputArgument::IS_ARRAY | InputArgument::REQUIRED, 'tokens to search for'),
             ))

src/Composer/Command/ShowCommand.php

@@ -28,7 +28,7 @@ class ShowCommand extends Command
     {
         $this
             ->setName('show')
-            ->setDescription('show package details')
+            ->setDescription('Show package details')
             ->setDefinition(array(
                 new InputArgument('package', InputArgument::REQUIRED, 'the package to inspect'),
                 new InputArgument('version', InputArgument::OPTIONAL, 'the version'),

src/Composer/Command/ValidateCommand.php

@@ -28,7 +28,7 @@ class ValidateCommand extends Command
     {
         $this
             ->setName('validate')
-            ->setDescription('validates a composer.json')
+            ->setDescription('Validates a composer.json')
             ->setDefinition(array(
                 new InputArgument('file', InputArgument::OPTIONAL, 'path to composer.json file', './composer.json')
             ))