Fix incorrect documentation of the MailboxStatus manager command.

The "Waiting" field was misdocumented as reporting the number of
messages waiting. In reality, it simply indicated the presence or
absence of waiting messages.
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Merged revisions 371782 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 371783 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@371784 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -591,7 +591,8 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 			<para>Returns number of messages.</para>
 			<para>Message: Mailbox Status.</para>
 			<para>Mailbox: <replaceable>mailboxid</replaceable>.</para>
-			<para>Waiting: <replaceable>count</replaceable>.</para>
+			<para>Waiting: <literal>0</literal> if messages waiting, <literal>1</literal>
+			if no messages waiting.</para>
 		</description>
 	</manager>
 	<manager name="MailboxCount" language="en_US">