[m-rev.] diff: fix minor documentation problems

[Julien Fischer]

Fix minor documentation problems.

library/set_ordlist.m:
 	The arguments in the descriptive comment for delete/3 were
 	in the wrong order.

vim/doc/mercury.txt:
 	Fix a typo: s/coneal/conceal/.

Julien.

diff --git a/library/set_ordlist.m b/library/set_ordlist.m
index 10116a4..96356f0 100644
--- a/library/set_ordlist.m
+++ b/library/set_ordlist.m
@@ -128,7 +128,7 @@
      set_ordlist(T)::in, set_ordlist(T)::out) is det.
  :- func insert_list(set_ordlist(T), list(T)) = set_ordlist(T).

-    % `delete(Set0, X, Set)' is true iff `Set' is the
+    % `delete(X, Set0, Set)' is true iff `Set' is the
      % relative complement of `Set0' and the set containing only `X', i.e.
      % if `Set' is the set which contains all the elements of `Set0'
      % except `X'.
diff --git a/vim/doc/mercury.txt b/vim/doc/mercury.txt
index d3b0765..13fa5d3 100644
--- a/vim/doc/mercury.txt
+++ b/vim/doc/mercury.txt
@@ -133,7 +133,7 @@ such as `' or ``'': >
  If you use Vim 7.3+ with conceal enabled but do not want any concealing
  of operators, use: >

-    let mercury_no_coneal = 1
+    let mercury_no_conceal = 1
  <
  To enable concealing for characters which require a good Unicode font
  and might be "too much" for some users, define: >