Applied patch from Regid Ichira to clarify shutdown command

line options. Updated manual page for shutdown.
Closes Debian bug #630661.

doc/Changelog

@@ -21,6 +21,9 @@ sysvinit (2.92) unreleased; urgency=low
       avoid locking up if it encounters stopped or zombie processes 
       due to broken NFS mount points.
       This should allow Debian bug #719273 to be closed.
+    * Applied patch from Regid Ichira to clarify shutdown command
+      line options. Updated manual page for shutdown.
+      Closes Debian bug #630661.
 
 
 sysvinit (2.91) world; urgency=low

man/shutdown.8

@@ -70,7 +70,8 @@ Halt or power off after shutdown.
 .\"}}}
 .\"{{{  -P
 .IP \fB\-P\fP
-Halt action is to turn off the power.
+Modifier to the -h flag. Halt action is to turn off the power. 
+Must be used with the -h flag.
 .\"}}}
 .\"{{{  -H
 .IP \fB\-H\fP

src/shutdown.c

@@ -132,7 +132,9 @@ void usage(void)
 	"\t\t  -r:      reboot after shutdown.\n"
 	"\t\t  -h:      halt after shutdown.\n"
 	"\t\t  -P:      halt action is to turn off power.\n"
+        "\t\t           can only be used along with -h flag.\n"
 	"\t\t  -H:      halt action is to just halt.\n"
+        "\t\t           can only be used along with -h flag.\n"
 	"\t\t  -f:      do a 'fast' reboot (skip fsck).\n"
 	"\t\t  -F:      Force fsck on reboot.\n"
 	"\t\t  -n:      do not go through \"init\" but go down real fast.\n"