Do not timestamp syslog logs a second time

syslog() already adds the date, don't make s6-log add it
by default.

Signed-off-by: Laurent Bercot <[email protected]>

layout/syslogd-overlay/etc/s6-overlay/s6-rc.d/syslogd-log/run

@@ -2,7 +2,7 @@
 
 s6-envuidgid -D 32761:32761: -- sysllog
 s6-applyuidgid -U --
-backtick -D "n20 s1000000 T" line { printcontenv S6_LOGGING_SCRIPT }
+backtick -D "n20 s1000000" line { printcontenv S6_LOGGING_SCRIPT }
 multisubstitute
 {
   importas -usC T line