journald: turn ForwardToSyslog= off by default

After all, rsyslog and friends nowadays read their data directly from
the journal, hence the forwarding is unnecessary in most cases.

man/journald.conf.xml

@@ -395,8 +395,8 @@
                                 forwarding to syslog is enabled but no
                                 syslog daemon is running, the
                                 respective option has no effect. By
-                                default, only forwarding to syslog and
-                                wall is enabled. These settings may be
+                                default, only forwarding wall is
+                                enabled. These settings may be
                                 overridden at boot time with the
                                 kernel command line options
                                 <literal>systemd.journald.forward_to_syslog=</literal>,
@@ -405,9 +405,9 @@
                                 and
                                 <literal>systemd.journald.forward_to_wall=</literal>.
                                 When forwarding to the console, the
-                                TTY to log to can be changed
-                                with <varname>TTYPath=</varname>,
-                                described below.</para></listitem>
+                                TTY to log to can be changed with
+                                <varname>TTYPath=</varname>, described
+                                below.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>

src/journal/journald-server.c

@@ -1473,7 +1473,6 @@ int server_init(Server *s) {
         s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
         s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
 
-        s->forward_to_syslog = true;
         s->forward_to_wall = true;
 
         s->max_file_usec = DEFAULT_MAX_FILE_USEC;

src/journal/journald-syslog.c

@@ -37,14 +37,14 @@
 
 static void forward_syslog_iovec(Server *s, const struct iovec *iovec, unsigned n_iovec, struct ucred *ucred, struct timeval *tv) {
 
-        union sockaddr_union sa = {
+        static const union sockaddr_union sa = {
                 .un.sun_family = AF_UNIX,
                 .un.sun_path = "/run/systemd/journal/syslog",
         };
         struct msghdr msghdr = {
                 .msg_iov = (struct iovec *) iovec,
                 .msg_iovlen = n_iovec,
-                .msg_name = &sa,
+                .msg_name = (struct sockaddr*) &sa.sa,
                 .msg_namelen = offsetof(union sockaddr_union, un.sun_path)
                                + strlen("/run/systemd/journal/syslog"),
         };
@@ -426,7 +426,7 @@ int server_open_syslog_socket(Server *s) {
         assert(s);
 
         if (s->syslog_fd < 0) {
-                union sockaddr_union sa = {
+                static const union sockaddr_union sa = {
                         .un.sun_family = AF_UNIX,
                         .un.sun_path = "/run/systemd/journal/dev-log",
                 };

src/journal/journald.conf

@@ -23,7 +23,7 @@
 #RuntimeMaxFileSize=
 #MaxRetentionSec=
 #MaxFileSec=1month
-#ForwardToSyslog=yes
+#ForwardToSyslog=no
 #ForwardToKMsg=no
 #ForwardToConsole=no
 #ForwardToWall=yes