[gnome-nibbles/arnaudb/kill-preferences-dialog] Fix typos.

[Arnaud B. <arnaudb src gnome org>]

commit 4c9228b429db9fe32a93816f5be425155fc7e883
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Jun 13 20:02:47 2020 +0200

    Fix typos.
    
    Found by [codespell](https://github.com/codespell-project/codespell).

 src/nibbles-view.vala   | 2 +-
 src/nibbles-window.vala | 2 +-
 src/worm.vala           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/nibbles-view.vala b/src/nibbles-view.vala
index 107a11d..2abaf84 100644
--- a/src/nibbles-view.vala
+++ b/src/nibbles-view.vala
@@ -198,7 +198,7 @@ private class NibblesView : GtkClutter.Embed
     }
 
     /*\
-    * * Level creationg and loading
+    * * Level creation and loading
     \*/
 
     internal void new_level (int level_id)
diff --git a/src/nibbles-window.vala b/src/nibbles-window.vala
index 774db18..a07464b 100644
--- a/src/nibbles-window.vala
+++ b/src/nibbles-window.vala
@@ -662,7 +662,7 @@ private class NibblesWindow : ApplicationWindow
 
         scores_context = new Games.Scores.Context.with_importer (
             "gnome-nibbles",
-            /* Translators: label displayed on the scores dialog, preceeding a difficulty. */
+            /* Translators: label displayed on the scores dialog, preceding a difficulty. */
             _("Difficulty Level:"),
             this,
             category_request,
diff --git a/src/worm.vala b/src/worm.vala
index 4f2d258..d49d145 100644
--- a/src/worm.vala
+++ b/src/worm.vala
@@ -763,7 +763,7 @@ private class Worm : Object
         }
 
         /* Avoid walls, dead-ends and other worm's heads. This is done using
-         * an evalution function which is CAPACITY for a wall, 4 if another
+         * an evaluation function which is CAPACITY for a wall, 4 if another
          * worm's head is in the tooclose area, 4 if another worm's head
          * could move to the same location as ours, plus 0 if there's no
          * dead-end, or the amount that doesn't fit for a deadend. olddir's