Document the maximum length of voicemail email message body. Bug #1299

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2560 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/voicemail.conf.sample

@@ -29,7 +29,12 @@ maxlogins=3
 ;pbxskip=yes
 ; Change the From: string
 ;fromstring=The Asterisk PBX
-; Change the email body, variables: VM_NAME, VM_DUR, VM_MSGNUM, VM_MAILBOX, VM_CALLERID, VM_DATE
+;
+; Change the email body, variables: 
+;     VM_NAME, VM_DUR, VM_MSGNUM, VM_MAILBOX, VM_CALLERID, VM_DATE
+;
+; Note: The emailbody config row can be up to 512 characters due to a limitation in 
+;       asterisk config files.
 ;emailbody=Dear ${VM_NAME}:\n\n\tjust wanted to let you know you were just left a ${VM_DUR} long message (number ${VM_MSGNUM})\nin mailbox ${VM_MAILBOX} from ${VM_CALLERID}, on ${VM_DATE} so you might\nwant to check it when you get a chance.  Thanks!\n\n\t\t\t\t--Asterisk\n
 
 ;