update apt

Author: sarven

tests/travis/install-mssql.sh

@@ -3,9 +3,10 @@
 set -ex
 
 echo Installing drivers
+sudo apt-get install apt
 curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
 curl https://packages.microsoft.com/config/ubuntu/14.04/prod.list | sudo tee /etc/apt/sources.list.d/mssql.list
-sudo apt-get update -o Acquire::CompressionTypes::Order::=gz
+sudo apt-get update
 ACCEPT_EULA=Y sudo apt-get install -qy msodbcsql17 mssql-tools unixodbc libssl1.0.0
 
 echo Setting up Microsoft SQL Server