Fix for #1018 "'Export To CSV' for Reports not working"

The call to LeftAndMain::Link() was appending the Action as opposed to passing it as a parameter
This resulted in the double forward slash (/),

There is still possibly an unresolved issue with LeftAndMain::Link() about appending the slash at the end??
Merge pull request #1050 from tractorcow/pr/1019

Fix for #1018 "'Export To CSV' for Reports not working"