remove bookpaper ref.

diff --git a/input/regression/system-separator.ly b/input/regression/system-separator.ly
index 88414a86f4e4d685b417eed5476ce90b0738a5c5..865ff4fc48b15f2c99d42c1ed5ee251cdb2836e8 100644 (file)
--- a/input/regression/system-separator.ly
+++ b/input/regression/system-separator.ly
@@ -3,7 +3,7 @@
 \header {
 
   texidoc = "System separators maybe defined as markups in the
-@code{systemSeparator} field of the bookpaper block. They are centered
+@code{systemSeparator} field of the paper block. They are centered
 between the boundary staffs of each system. "
 
 }