Add SIGUSR1 to man page.
-.TH "routinator" "1" "November 20, 2019" "NLnet Labs" "routinator 0.6.2
+.TH "routinator" "1" "November 28, 2019" "NLnet Labs" "routinator 0.6.3
.\"
.\" routinator.1 -- RPKI Relying Party software
.\"
@@ -939,6 +939,12 @@ some places used to carry encoded content themselves, such an encoding
does make parsing significantly more difficult. At least one CA does
produce such broken-up strings.
+.SH SIGNALS
+.SS SIGUSR1: Reload TALs and restart validation
+When receiving SIGUSR1, Routinator will attempt to reload the TALs and, if
+that succeeds, restart validation. If loading the TALs fails, Routinator will
+exit.
+
.SH EXIT STATUS
Upon success, the exit status 0 is returned. If any fatal error happens,
the exit status will be 1. Some commands provide a
