Doc: LM adjusted explanation for \once

Doc: LM adjusted explanation for \once

This is for Tracker issue 2164

As suggested by email on lilypond-user

Updated example and text to show that after using \once, the
'revert' does not necessarily go back to the 'default' value
as originally stated, if another \override is
still in place.

[janek, 2012-01-01 12:26:22]

generally LGTM

http://codereview.appspot.com/5489129/diff/1/Documentation/learning/tweaks.itely
File Documentation/learning/tweaks.itely (right):

http://codereview.appspot.com/5489129/diff/1/Documentation/learning/tweaks.it...
Documentation/learning/tweaks.itely:284: moment before the property reverts back
to its current value (this can
i think that "reverts back to its previous value" might be less confusing.

[pkx166h, 2012-01-01 17:26:16]

Thanks Janek.

http://codereview.appspot.com/5489129/diff/1/Documentation/learning/tweaks.itely
File Documentation/learning/tweaks.itely (right):

http://codereview.appspot.com/5489129/diff/1/Documentation/learning/tweaks.it...
Documentation/learning/tweaks.itely:284: moment before the property reverts back
to its current value (this can
On 2012/01/01 12:26:22, janek wrote:
> i think that "reverts back to its previous value" might be less confusing.

Done.

[Graham Percival, 2012-01-02 21:25:57]

LGTM