minor symfony#44722 [Validator] Improve French translation (fancyweb)

This PR was merged into the 4.4 branch.

Discussion
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[Validator] Improve French translation

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

See symfony#44720 (comment)

Commits
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292fcfe [Validator] Improve French translation

Author: fabpot

src/Symfony/Component/Validator/Resources/translations/validators.fr.xlf

@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>Aucun répertoire temporaire n'a été configuré dans le php.ini.</target>
+                <target>Aucun répertoire temporaire n'a été configuré dans le php.ini, ou le répertoire configuré n'existe pas.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>