fixed little typo
minor #4574 fixed little typo (adridev)

This PR was merged into the 2.3 branch.

Discussion
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fixed little typo

Commits
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d43dacc fixed little typo
Add command to make symfony.phar executable.
bug #4533 Add command to make symfony.phar executable. (xelaris)

This PR was submitted for the 2.7 branch but it was merged into the 2.3 branch instead (closes #4533).

Discussion
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Add command to make symfony.phar executable.

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
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dd9de4e Add command to make symfony.phar executable.
Updating the installer docs to exactly match that repository's README - see #4533
Merge branch '2.3' into 2.5

* 2.3:
  Updating the installer docs to exactly match that repository's README - see #4533
  Add command to make symfony.phar executable.
  fixed little typo