1. Clarify "tab/space" Error Dialog and "Tab Width" Dialog associated with
   the Untabify command.
2. Corrected "tab/space" Error Dialog to show correct menu for Untabify.
   Patch 1196980 Jeff Shute

M EditorWindow.py
M NEWS.txt
M ScriptBinding.py
diff --git a/Lib/idlelib/ScriptBinding.py b/Lib/idlelib/ScriptBinding.py
index 0017d19..3e92c80 100644
--- a/Lib/idlelib/ScriptBinding.py
+++ b/Lib/idlelib/ScriptBinding.py
@@ -31,16 +31,13 @@
 
 indent_message = """Error: Inconsistent indentation detected!
 
-This means that either:
+1) Your indentation is outright incorrect (easy to fix), OR
 
-1) your indentation is outright incorrect (easy to fix), or
+2) Your indentation mixes tabs and spaces.
 
-2) your indentation mixes tabs and spaces in a way that depends on \
-how many spaces a tab is worth.
-
-To fix case 2, change all tabs to spaces by using Select All followed \
-by Untabify Region (both in the Edit menu)."""
-
+To fix case 2, change all tabs to spaces by using Edit->Select All followed \
+by Format->Untabify Region and specify the number of columns used by each tab.
+"""
 
 class ScriptBinding: