[xliff-comment] placeholder id should not be required

XLIFF id attributes for placeholders should not be required.

For example, when a placeholder represents a line break, there is no need
for an id.

<x ctype="lb" />
-or-
<ph ctype="lb">\n</ph>

The ctype attribute provides all the information needed.

I think the 'id' should be optional for placeholders.

BTW, shouldn't the <x/> placeholder be preferred over <ph> for paragraph and
line breaks?


Regards,

Doug D

Ektron, Inc.
+1 603 594-0249
http://www.ektron.com