core: moving release.go.lib to release.go.x.lib

MultiPart: 1/4
Change-Id: I503bb192fa6b733f9def47db558441d3c11b890b
diff --git a/tools/mgmt/device/impl/local_install.go b/tools/mgmt/device/impl/local_install.go
index d871492..946bbb7 100644
--- a/tools/mgmt/device/impl/local_install.go
+++ b/tools/mgmt/device/impl/local_install.go
@@ -24,7 +24,7 @@
 	"v.io/v23/vlog"
 
 	pkglib "v.io/core/veyron/services/mgmt/lib/packages"
-	"v.io/lib/cmdline"
+	"v.io/x/lib/cmdline"
 )
 
 var cmdInstallLocal = &cmdline.Command{