tests/test-merge3

hghave: be more tolerant to rst2html output

On Windows, rst2html.bat calls rst2html.py, printing something like:

"rst2html.py (Docutils"

(notice the extra ".py")

#!/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"