Upgrade Pigo to v1.4.1

build.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-VERSION="1.4.0"
+VERSION="1.4.1"
 PROTECTED_MODE="no"
 
 export GO15VENDOREXPERIMENT=1

examples/web/main.go

@@ -81,15 +81,15 @@ func webcam(w http.ResponseWriter, r *http.Request) {
 
 	cascadeFile, err := ioutil.ReadFile(*cascadeFile)
 	if err != nil {
-		log.Fatalf("Error reading the cascade file: %v", err)
+		log.Fatalf("[ERROR] reading the cascade file: %v", err)
 	}
 
 	p := pigo.NewPigo()
 	// Unpack the binary file. This will return the number of cascade trees,
 	// the tree depth, the threshold and the prediction from tree's leaf nodes.
 	classifier, err := p.Unpack(cascadeFile)
 	if err != nil {
-		log.Fatalf("Error reading the cascade file: %s", err)
+		log.Fatalf("[ERROR] reading the cascade file: %v", err)
 	}
 
 	mpart := multipart.NewReader(stdout, boundary)