[genius] minor fix in whitespace/comment

[George Lebl <jirka src gnome org>]

commit 7353fcded241ff2f5b4ebc6c88c732cb21a0a366
Author: Jiri (George) Lebl <jiri lebl gmail com>
Date:   Tue Apr 7 14:30:21 2015 -0500

    minor fix in whitespace/comment

 examples/vibrating-drumhead-modes.gel |   22 +++++++++++-----------
 1 files changed, 11 insertions(+), 11 deletions(-)
---
diff --git a/examples/vibrating-drumhead-modes.gel b/examples/vibrating-drumhead-modes.gel
index 6cff7aa..333c9e7 100644
--- a/examples/vibrating-drumhead-modes.gel
+++ b/examples/vibrating-drumhead-modes.gel
@@ -11,17 +11,17 @@
 # added complexity
 
 the_answer = AskButtons("Which mode?  n-m where n is the Bessel J_n to use",
-                                         "0-1", # 1
-                                         "0-2", # 2
-                                         "0-3", # 3
-                                         "1-1", # 4
-                                         "1-2", # 5
-                                         "1-3", # 6
-                                         "2-1", # 7
-                                         "2-2", # 8
-                                         "2-3", # 9
-                                         "Superposition" # 9
-                                         );
+                        "0-1", # 1
+                        "0-2", # 2
+                        "0-3", # 3
+                        "1-1", # 4
+                        "1-2", # 5
+                        "1-3", # 6
+                        "2-1", # 7
+                        "2-2", # 8
+                        "2-3", # 9
+                        "Superposition" # 10
+                        );
 
 # the zeros of the Bessel functions
 kmn = [2.4048  , 3.8317, 5.1356