route health handler path correctly (#474)

* fix health handler

go.test.sh

@@ -4,7 +4,7 @@ set -e
 echo "" > coverage.txt
 
 for d in $(go list ./... | grep -v vendor); do
-    go test -short -coverprofile=profile.out -covermode=count "$d"
+    go test -short -v -coverprofile=profile.out -covermode=count "$d"
     if [ -f profile.out ]; then
         cat profile.out >> coverage.txt
         rm profile.out

server/itx/health.go

@@ -9,8 +9,8 @@ package itx
 import "net/http"
 
 func registerHealthCheckMux(root *http.ServeMux) {
-	root.Handle("/health/", http.StripPrefix("/health", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	root.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 		w.Write([]byte("OK"))
-	})))
+	})
 }