Documentation update for the monitor change command

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4079 c046a42c-6fe2-441c-8c8c-71466251a162

qemu-doc.texi

@@ -1073,7 +1073,7 @@ Change the configuration of a device.
 Change the medium for a removable disk device to point to @var{filename}. eg
 
 @example
-(qemu) change cdrom /path/to/some.iso
+(qemu) change ide1-cd0 /path/to/some.iso
 @end example
 
 @item change vnc @var{display},@var{options}