Fix script error in #e0d3ba1a2a9694dc443fca0fd6466b17aac4bf59 - 2.8.0 was not to be removed.

library/arangodb

@@ -9,4 +9,7 @@
 
 2.7: git://github.com/arangodb/arangodb-docker@dbfcc5f3edb37f622a2acd221b58106547b05fae jessie/2.7.5
 2.7.5: git://github.com/arangodb/arangodb-docker@dbfcc5f3edb37f622a2acd221b58106547b05fae jessie/2.7.5
-latest: git://github.com/arangodb/arangodb-docker@dbfcc5f3edb37f622a2acd221b58106547b05fae jessie/2.7.5
+
+2.8: git://github.com/arangodb/arangodb-docker@ef82a712f9e521a546e6a27e3ccead824ab2e541 jessie/2.8.0
+2.8.0: git://github.com/arangodb/arangodb-docker@ef82a712f9e521a546e6a27e3ccead824ab2e541 jessie/2.8.0
+latest: git://github.com/arangodb/arangodb-docker@ef82a712f9e521a546e6a27e3ccead824ab2e541 jessie/2.8.0