Feature Request: Set exit code for script not found

[jhudsoncedaron]

The exit code for script not found is currently 1, which is a most unfortunate choice for us.

We are using dotnet-script to provide git merge drivers. It looks like the defect in git merge driver invocation to detect absolute failure is getting fixed. However, this still leaves the misconfiguration landmine lying around.

Proposed solution: dotnet script -E 131 scripts/gitmergedriver.csx

Where -E sets the exit code if the script can't start; (usually file not found).