hs-test: use consistent naming convention

Exported indentifiers in Go start with capital letters. Only few fields
in hs-test, which are being unmarshaled from yaml are required to be
exported. Every other field name or method name should start with
lower-case letter, to be consistent with this naming convention.

Type: test
Signed-off-by: Maros Ondrejicka <mondreji@cisco.com>
Change-Id: I7eab0eef9fd08a7890c77b6ce1aeb3fa4b80f3cd
diff --git a/extras/hs-test/topo.go b/extras/hs-test/topo.go
index d77d2da..6cb2945 100644
--- a/extras/hs-test/topo.go
+++ b/extras/hs-test/topo.go
@@ -14,7 +14,7 @@
 	Volumes    []VolumeConfig    `yaml:"volumes"`
 }
 
-func AddAddress(device, address, ns string) error {
+func addAddress(device, address, ns string) error {
 	c := []string{"ip", "addr", "add", address, "dev", device}
 	cmd := appendNetns(c, ns)
 	err := cmd.Run()