Update with info on how to configure command output to look like LVM1

doc/example.conf

@@ -65,6 +65,22 @@ log {
     # Should we send log messages through syslog?
     # 1 is yes; 0 is no.
     syslog = 1
+
+    # Choose format of output messages
+    # Whether or not (1 or 0) to indent messages according to their severity
+    indent = 1
+
+    # Whether or not (1 or 0) to display the command name on each line output
+    command_names = 0
+
+    # A prefix to use before the message text (but after the command name,
+    # if selected)
+    prefix = "  "
+
+    # To make the messages look similar to the original LVM use:
+    #   indent = 0
+    #   command_names = 1
+    #   prefix = " -- "
 }
 
 # Configuration of metadata backups and archiving.  In LVM2 when we