Merge branch '2.8' into 3.1

* 2.8:
  update German translation
  [Validator] Improved error message for missing upload_tmp_dir

Author: nicolas-grekas

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

@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>Es wurde kein temporärer Ordner in der php.ini konfiguriert.</target>
+                <target>Es wurde kein temporärer Ordner in der php.ini konfiguriert oder der temporäre Ordner existiert nicht.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>

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

@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>No temporary folder was configured in php.ini.</target>
+                <target>No temporary folder was configured in php.ini, or the configured folder does not exist.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>

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

@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>Er is geen tijdelijke map geconfigureerd in php.ini.</target>
+                <target>Er is geen tijdelijke map geconfigureerd in php.ini, of de gespecificeerde map bestaat niet.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>

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

@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>Nie skonfigurowano folderu tymczasowego w php.ini.</target>
+                <target>Nie skonfigurowano folderu tymczasowego w php.ini, lub skonfigurowany folder nie istnieje.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>