Add length-fraction to the stem-tremolo-interface.

Document the list of available values for style in the stem-tremolo-interface.

diff --git a/lily/stem-tremolo.cc b/lily/stem-tremolo.cc
index b91b18fd5a1e9359edb3747ab50f3b77e45cfd93..8960fe64ade989570bbe4d8a3c13bffaceb8ef79 100644 (file)
--- a/lily/stem-tremolo.cc
+++ b/lily/stem-tremolo.cc
@@ -247,11 +247,15 @@ Stem_tremolo::print (SCM grob)
 }
 
 ADD_INTERFACE (Stem_tremolo,
-              "A beam slashing a stem to indicate a tremolo.",
+              "A beam slashing a stem to indicate a tremolo. "
+               "The property @code{style} can be @code{default} or "
+               "@code{rectangle}.",
 
+               /* properties */
               "beam-thickness "
               "beam-width "
               "flag-count "
+              "length-fraction "
               "stem "
                "style "
               "slope "