Add special consideration for rlcompleter. As a side effect of

initializing GNU readline, setlocale(LC_CTYPE, "") is called, which
changes the <ctype.h> macros to use the "default" locale (which isn't
the *initial* locale -- the initial locale is the "C" locale in which
only ASCII characters are printable).  When the default locale is e.g.
Latin-1, the repr() of string objects can include 8-bit characters
with the high bit set; I believe this is due to the recent
PRINT_MULTIBYTE_STRING changes to stringobject.c.  This in turn screws
up test_pyexpat and test_rotor, which depend on the repr() of 8-bit
strings with high bit characters.

The solution (for now) is to force the LC_CTYPE locale to "C" after
importing rlcompleter.  This is the locale required by the test suite
anyway.

Lib/test/test___all__.py

@@ -132,7 +132,6 @@ check_all("regsub")
 check_all("repr")
 check_all("rexec")
 check_all("rfc822")
-check_all("rlcompleter")
 check_all("robotparser")
 check_all("sched")
 check_all("sgmllib")
@@ -161,3 +160,15 @@ check_all("weakref")
 check_all("webbrowser")
 check_all("xdrlib")
 check_all("zipfile")
+
+# rlcompleter needs special consideration; it import readline which
+# initializes GNU readline which calls setlocale(LC_CTYPE, "")... :-(
+try:
+    check_all("rlcompleter")
+finally:
+    try:
+        import locale
+    except ImportError:
+        pass
+    else:
+        locale.setlocale(locale.LC_CTYPE, 'C')