tests/test-merge3

Don't send "Content-Type: none"

mimetypes.guess_type will return (None, None) when it can't detect the
filetype.

#!/bin/sh

hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
touch b
hg add b
rm b
hg commit -A -m"comment #1" -d "1000000 0"