The local community wants 'Diff' as canonical form, add also the long
form for what Diff stands.
Keep the old alias, was added with:
Ic2b34a948d527cee6b76abd7e24a6d8a33b65bd2
https://translatewiki.net/w/i.php?title=MediaWiki:Sp-translate-data-SpecialPageAliases/de&diff=
6066852&oldid=
6049012
https://de.wikipedia.org/w/index.php?title=Wikipedia:Fragen_zur_Wikipedia&oldid=
139947048#Spezial:Diff_.E2.86.92_Spezial:Unterschied
Change-Id: I504cd4b0e7c7b5c22812fe9eb0cf8dec9ff9514b
'CreateAccount' => array( 'Benutzerkonto_anlegen' ),
'Deadendpages' => array( 'Sackgassenseiten' ),
'DeletedContributions' => array( 'Gelöschte_Beiträge' ),
- 'Diff' => array( 'Unterschied' ),
+ 'Diff' => array( 'Diff', 'Differenz', 'Unterschied' ),
'DoubleRedirects' => array( 'Doppelte_Weiterleitungen' ),
'EditWatchlist' => array( 'Beobachtungsliste_bearbeiten' ),
'Emailuser' => array( 'E-Mail_senden', 'Mailen', 'E-Mail' ),