[m-rev.] trivial diff: minor rewording of README.{AIX,HPUX}

[Julien Fischer]

Minor rewording of README.{AIX,HPUX}.

README.AIX:
 	As above.

README.HPUX:
 	As above, plus fix a cut-and-paste error.

Julien.

diff --git a/README.AIX b/README.AIX
index 9e7fd87..553fb72 100644
--- a/README.AIX
+++ b/README.AIX
@@ -1,5 +1,5 @@

-Mercury hasn't been tested on AIX since 1998.  We are unaware if it works.
+Mercury has not been tested on AIX since 1998.  We are unaware if it works.
  If you have experience with recent versions of Mercury on AIX please let us
  know.

diff --git a/README.HPUX b/README.HPUX
index cedfe86..77fec9f 100644
--- a/README.HPUX
+++ b/README.HPUX
@@ -1,6 +1,6 @@

-Mercury hasn't been tested on HPUX since 1998.  We are unaware if it works.
-If you have experience with recent versions of Mercury on AIX please let us
+Mercury has not been tested on HP-UX since 1998.  We are unaware if it works.
+If you have experience with recent versions of Mercury on HP-UX please let us
  know.

  Contact information: