Couple of minor fixes, update readme

1 files changed, 1 insertions, 1 deletions

diff --git a/modules.go b/modules.go
index 46fdd3b..b9e5b4e 100644
--- a/modules.go
+++ b/modules.go
@@ -96,7 +96,7 @@ type ModuleID string
 func (id ModuleID) Namespace() string {
 	lastDot := strings.LastIndex(string(id), ".")
 	if lastDot < 0 {
-		return string(id)
+		return ""
 	}
 	return string(id)[:lastDot]
 }