Do not output empty lines if the message is empty

Author: cmaglie

Diff for: internal/arduino/builder/logger/logger.go

@@ -62,13 +62,19 @@ func New(stdout, stderr io.Writer, verbosity Verbosity, warningsLevel string) *B
 
 // Info fixdoc
 func (l *BuilderLogger) Info(msg string) {
+	if msg == "" {
+		return
+	}
 	l.stdLock.Lock()
 	defer l.stdLock.Unlock()
 	fmt.Fprintln(l.stdout, msg)
 }
 
 // Warn fixdoc
 func (l *BuilderLogger) Warn(msg string) {
+	if msg == "" {
+		return
+	}
 	l.stdLock.Lock()
 	defer l.stdLock.Unlock()
 	fmt.Fprintln(l.stderr, msg)