[TYPO3-translators] Cannot save translation

[Christian Hennecke]

Hello,

I've trouble saving the translation for
typo3/sysext/install/modules/installer/locallang.xml. I have selected
"Update all values" and "No thanks, move to external file". When I
press "Save", I get an error message and the form is displayed without
my additions again. The error message is:

Warning:
fopen(/var/www/translation/typo3/sysext/install/modules/installer/locall
ang.xml) [function.fopen]: failed to open stream: Permission denied in
/var/www/typo3_src-trunk/t3lib/class.t3lib_div.php on line 2480.

Saving the other files for install worked fine.

Christian