typo

diff --git a/input/test/engraver-one-by-one.ly b/input/test/engraver-one-by-one.ly
index b6f0331c10135d74f2fc16ee49ac46eeabe8e937..c5cd51fa476a68b30f19057c5dbeb29e7d9f813e 100644 (file)
--- a/input/test/engraver-one-by-one.ly
+++ b/input/test/engraver-one-by-one.ly
@@ -4,7 +4,7 @@
     
 texidoc = "The notation problem, creating a certain symbol,
     is handled by plugins. Each plugin is called Engraver. In this example,
-engravers is switched on one by one, in the following order:
+engravers are switched on one by one, in the following order:
 
 @itemize
 @item note heads,