Fix Segfault for first iteration of set_spaces - abc2ps - A powerful sheet setting tool using the simple abc notation
 (HTM) git clone git://vernunftzentrum.de/abc2ps.git
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 (DIR) commit e001f5fca1f9a03e591362b7edb803aaa228b0b3
 (DIR) parent 361a200da0043f2d117e1a9ef92b85e853e38bc7
 (HTM) Author: Christian Kellermann <ckeen@pestilenz.org>
       Date:   Tue, 17 Apr 2018 21:03:55 +0200
       
       Fix Segfault for first iteration of set_spaces
       
       Diffstat:
         music.h                             |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
 (DIR) diff --git a/music.h b/music.h
       @@ -1227,7 +1227,7 @@ void set_spaces ()
          }
        
          i=xp[XP_START].next;
       -  j=-1;
       +  j=0;
          typl=0;
          for (;;) {
            nxt=xp[i].next;