Removing / prefix from godep import sub-packages

cmd/godeps.go

diff --git a/cmd/godeps.go b/cmd/godeps.go
index 9b8036b..72c6d27 100644
--- a/cmd/godeps.go
+++ b/cmd/godeps.go
@@ -83,6 +83,7 @@
 		// Info("Adding package %s\n", d.ImportPath)
 		pkg := util.GetRootFromPackage(d.ImportPath)
 		sub := strings.TrimPrefix(d.ImportPath, pkg)
+		sub = strings.TrimPrefix(sub, "/")
 		if _, ok := seen[pkg]; ok {
 			if len(sub) == 0 {
 				continue