(Electric C Characters, Evaluating Emacs-Lisp Expressions): Use <colon>

instead of : only in Info.

man/programs.texi

@@ -1557,9 +1557,14 @@ colon with no reindentation or newlines by typing @kbd{C-c :}:
 
 @table @kbd
 @item C-c :
+@ifinfo
 @c This uses ``colon'' instead of a literal `:' because Info cannot
 @c cope with a `:' in a menu
 @kindex C-c @key{colon} @r{(C mode)}
+@end ifinfo
+@ifnotinfo
+@kindex C-c : @r{(C mode)}
+@end ifnotinfo
 @findex c-scope-operator
 Insert a double colon scope operator at point, without reindenting the
 line or adding any newlines (@code{c-scope-operator}).