Added error to return values in some functions

fluentd/config.go

@@ -5,10 +5,13 @@ import (
 	"strings"
 )
 
-func ParseAddr(addr string) (string, int) {
+func ParseAddr(addr string) (string, int, error) {
 	p := strings.Split(addr, ":")
 	fHost := p[0]
-	fPort, _ := strconv.Atoi(p[1])
+	fPort, err := strconv.Atoi(p[1])
+	if err != nil {
+		return nil, nil, err
+	}
 
-	return fHost, fPort
+	return fHost, fPort, nil
 }