idevicesyslog: Use --syslog-relay in description and man page

Both --syslog-relay and --syslog_relay still work regardless, but
it is more aligned with other long options.

2 files changed, 2 insertions, 2 deletions

diff --git a/docs/idevicesyslog.1 b/docs/idevicesyslog.1
index cb91193..5a677b6 100644
--- a/docs/idevicesyslog.1
+++ b/docs/idevicesyslog.1
@@ -39,7 +39,7 @@ If FILE already exists, it will be overwritten without warning.
 .B \-\-colors
 Force writing colored output, e.g. when using \f[B]\-\-output\f[].
 .TP
-.B \-\-syslog_relay
+.B \-\-syslog\-relay
 Use old syslog_relay service instead of os_trace_relay (iOS 9+).
 
 .SH COMMANDS
diff --git a/tools/idevicesyslog.c b/tools/idevicesyslog.c
index 830b76a..dc404b0 100644
--- a/tools/idevicesyslog.c
+++ b/tools/idevicesyslog.c
@@ -880,7 +880,7 @@ static void print_usage(int argc, char **argv, int is_error)
                 "  -o, --output FILE     write to FILE instead of stdout\n"
                 "                        (existing FILE will be overwritten)\n"
                 "  --colors              force writing colored output, e.g. for --output\n"
-                "  --syslog_relay        force use of syslog_relay service\n"
+                "  --syslog-relay        force use of syslog_relay service\n"
                 "\n"
                 "COMMANDS:\n"
                 "  pidlist               Print pid and name of all running processes.\n"