Fix typo in header name

internal/proxy/proxy.go

@@ -32,7 +32,7 @@ func (p *Proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	// Set Workhorse version
 	req.Header.Set("Gitlab-Workhorse", p.Version)
-	req.Header.Set("Gitlab-Worhorse-Proxy-Start", fmt.Sprintf("%d", time.Now().UnixNano()))
+	req.Header.Set("Gitlab-Workhorse-Proxy-Start", fmt.Sprintf("%d", time.Now().UnixNano()))
 
 	p.reverseProxy.ServeHTTP(w, &req)
 }

proxy_test.go

@@ -42,8 +42,8 @@ func TestProxyRequest(t *testing.T) {
 			t.Fatalf("Missing GitLab-Workhorse header: want %q, got %q", testVersion, h)
 		}
 
-		if h := r.Header.Get("Gitlab-Worhorse-Proxy-Start"); !strings.HasPrefix(h, "1") {
-			t.Fatalf("Expect Gitlab-Worhorse-Proxy-Start to start with 1, got %q", h)
+		if h := r.Header.Get("Gitlab-Workhorse-Proxy-Start"); !strings.HasPrefix(h, "1") {
+			t.Fatalf("Expect Gitlab-Workhorse-Proxy-Start to start with 1, got %q", h)
 		}
 
 		var body bytes.Buffer