Disable text mode output under win32.
Add test for diffs of CRLF files (issue250).

diff -r e2ed92f4c0f7 tests/test-diff-newlines
--- a/tests/test-diff-newlines	Sat Feb 17 04:50:06 2007 -0200
+++ b/tests/test-diff-newlines	Mon Feb 19 12:03:49 2007 +0100
@@ -1,8 +1,16 @@
 #!/bin/sh
 
 hg init
-python -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
+
+python -u -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
+# Write a text file, without using redirections (pysh issue)
+# Since stdout is a text stream under win32, diff used to output
+# extra CR when diffing CRLF texts (issue250)
+python -c 'f = file("b", "wb"); f.write("a\r\na\r\na"); f.close()'
 hg ci -Ama -d '1 0'
+
+python -c 'f = file("b", "wb"); f.write("a\r\nbb\r\na"); f.close()'
 echo clean diff >> a
 hg ci -mb -d '2 0'
+
 hg diff -r0 -r1