install-opentsdb.sh: Fix the name of the tarball.
install-opentsdb.sh: Fix the name of the tarball.

Change-Id: I1c5514358b520d636a99d480286b1e35099d91d8

manolama/opentsdb.net,OpenTSDB/opentsdb.net,OpenTSDB/opentsdb.net,geoffreyanderson/opentsdb.net,geoffreyanderson/opentsdb.net,manolama/opentsdb.net,geoffreyanderson/opentsdb.net,OpenTSDB/opentsdb.net,manolama/opentsdb.net