Merge pull request #20 from hashicorp/implement-import

implement Import

tfexec/terraform.go

diff --git a/tfexec/terraform.go b/tfexec/terraform.go
index 5ce02bc..b4cff98 100644
--- a/tfexec/terraform.go
+++ b/tfexec/terraform.go
@@ -606,7 +606,7 @@
 		return nil, parseError(errBuf.String())
 	}
 
-	err = json.Unmarshal(outBuf.Bytes(), ret)
+	err = json.Unmarshal(outBuf.Bytes(), &ret)
 	if err != nil {
 		return nil, err
 	}