acpid: only display -p if supported in usage
Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/util-linux/acpid.c b/util-linux/acpid.c
index 95f8150..fc8215c 100644
--- a/util-linux/acpid.c
+++ b/util-linux/acpid.c
@@ -42,7 +42,9 @@
//usage: "\n -c DIR Config directory [/etc/acpi]"
//usage: "\n -e FILE /proc event file [/proc/acpi/event]"
//usage: "\n -l FILE Log file [/var/log/acpid.log]"
-//usage: "\n -p FILE Pid file [/var/run/acpid.pid]"
+//usage: IF_FEATURE_PIDFILE(
+//usage: "\n -p FILE Pid file [" CONFIG_PID_FILE_PATH "/acpid.pid]"
+//usage: )
//usage: "\n -a FILE Action file [/etc/acpid.conf]"
//usage: "\n -M FILE Map file [/etc/acpi.map]"
//usage: IF_FEATURE_ACPID_COMPAT(