Specifying imports without any items throws unfriendly error #96
Description
If one includes a block like so:
import:
# nothing
tasks:
blabla
Then an error is generated like the below:
panic: interface conversion: interface {} is nil, not []interface {}
goroutine 1 [running]:
github.com/taskctl/taskctl/internal/config.(*Loader).load(0xc00008db30, 0xc000026460, 0x20, 0x0, 0x0, 0x0)
/home/runner/work/taskctl/taskctl/internal/config/loader.go:155 +0xa1f
github.com/taskctl/taskctl/internal/config.(*Loader).Load(0xc00008db30, 0xc000026460, 0x20, 0x0, 0x0, 0xc05170)
/home/runner/work/taskctl/taskctl/internal/config/loader.go:74 +0x10d
main.makeApp.func2(0xc00007e580, 0xb, 0x12)
/home/runner/work/taskctl/taskctl/cmd/taskctl/taskctl.go:138 +0x8a
github.com/urfave/cli/v2.(*App).RunContext(0xc0000b0480, 0x9be810, 0xc0000a8010, 0xc0000b4000, 0x2, 0x2, 0x0, 0x0)
pkg/mod/github.com/urfave/cli/v2@v2.2.0/app.go:291 +0x882
github.com/urfave/cli/v2.(*App).Run(...)
pkg/mod/github.com/urfave/cli/v2@v2.2.0/app.go:215
main.run(0xc0000ba000, 0x9b6ca0)
/home/runner/work/taskctl/taskctl/cmd/taskctl/taskctl.go:65 +0xaf
main.main()
/home/runner/work/taskctl/taskctl/cmd/taskctl/taskctl.go:42 +0x73
##[error]Bash exited with code '2'.
Easy to figure out since that was my only change, but I wonder if there's a kinder way to surface this error?