snippet multi-measure-rest-markup.ly and use of s1*0

[Federico Bruni]

Hi

I have two different questions (quite related to each other)

1) In NR 1.2.2, Full measure rests
The snippet multi-measure-rest-markup.ly says:

"Markups attached to a multi-measure rest will be centered above or 
below it. Long markups attached to multi-measure rests do not cause the 
measure to expand. To expand a multi-measure rest to fit the markup, use 
a spacer rest with an attached markup before the multi-measure rest.

Note that the spacer rest causes a bar line to be inserted."

I cannot understand the last sentence.
I cannot see any change in the bar lines if I comment the spacer rests.


2) Should s1*0 be replaced by <> (see issue 2522)?
Two snippets still use s1*0

$ cd Documentation/snippets
$ git grep 's1\*0'
multi-measure-rest-markup.ly:  s1*0^\markup { [MAJOR GENERAL] }
multi-measure-rest-markup.ly:  s1*0_\markup { \italic { Cue: ... it is 
yours } }
multi-measure-rest-markup.ly:  s1*0^\markup { A }
positioning-segno-and-coda-with-line-break.ly:        % | s1*0^\markup { 
D.S. al
positioning-segno-and-coda-with-line-break.ly:        % | s1*0^\markup { 
\center