invalid memory address or nil pointer dereference

[alexhallam]

I just tried to install this for the first time and I got the following error.

termlog 
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x89d8b7]

goroutine 1 [running]:
github.com/go-git/go-git/v5.(*Repository).Worktree(...)
	/go/pkg/mod/github.com/go-git/go-git/v5@v5.0.0/repository.go:1328
main.main()
	/go/src/github.com/tzneal/ham-go/cmd/termlog/main.go:185 +0x1607