Fix docstring of property when

diff --git a/scm/define-grob-properties.scm b/scm/define-grob-properties.scm
index 7e912722e65cebc6cce525219163c924b4c77150..5b7f86e8528b760bd3e9f6ad02e7f7e118d214af 100644 (file)
--- a/scm/define-grob-properties.scm
+++ b/scm/define-grob-properties.scm
@@ -1129,8 +1129,7 @@ one below this grob.")
 ;;;
 ;;; w
 ;;;
-     (when ,ly:moment? "Global time step associated with this column
-happen?")
+     (when ,ly:moment? "Global time step associated with this column.")
      (whiteout ,boolean? "If true, the grob is printed over a white
 background to white-out underlying material, if the grob is visible.
  Usually #f by default.")