bug symfony#28664 [Console] Don't return early as this bypasses the auto exit feature (duncan3dc)

This PR was merged into the 3.4 branch.

Discussion
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[Console] Don't return early as this bypasses the auto exit feature

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | no
| Fixed tickets |
| License       | MIT

It looks like 8805cfd broke the auto exit feature by returning early.

I couldn't find any tests for this feature (presumably because it uses `exit()`), I was going to write one using uopz but didn't want to do this work if Symfony intentionally doesn't test the call to `exit()`

Commits
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b6c17df Don't return early as this bypasses the auto exit feature

Author: Robin Chalas

src/Symfony/Component/Console/Application.php

@@ -162,8 +162,6 @@ public function run(InputInterface $input = null, OutputInterface $output = null
             } else {
                 $exitCode = 1;
             }
-
-            return $exitCode;
         } finally {
             // if the exception handler changed, keep it
             // otherwise, unregister $renderException