Add forgotten + in string concatenation

lcmlog-server

@@ -229,7 +229,7 @@ def log_hash(name):
 def log_mail(kind, user_name, date, tags, log):
 	if REPLY_TO:
                 subprocess.run("printf " + shlex.quote(log) + " | mail -s \"Log" + kind + " " + date + " " + tags +
-                               "\" -r " + user + FROM_DOMAIN + " -a \"Reply-to:" TO_ADDRESS + " \" -- "
+                               "\" -r " + user + FROM_DOMAIN + " -a \"Reply-to:" + TO_ADDRESS + " \" -- "
 		               + TO_ADDRESS, shell=True)
 	else:
 		subprocess.run("printf \"%s\n\" " + shlex.quote(log) + " | mail -s \"Log" | kind + " " + date + " " + tags +