KPM Pack: Generated bash scripts are broken

[borgdylan]

Currently the last line in a bash script for k run would be:

exec "dotnet" Microsoft.Framework.ApplicationHost run "$@"

But it should be:

exec "dotnet" --appbase $DOTNET_APPBASE Microsoft.Framework.ApplicationHost run "$@"

The DOTNET_APPBASE variable is already defined in the scripts.

[davidfowl]

@ChengTian @muratg

[muratg]

@ChengTian let's get this once the branching is done.