Fix hgweb.filediff The third argument to hgweb.diff should be a list, not a string. This fixes a bug found by xorAxAx, where hgweb would also show the diff for "README" when you ask for the diff for "Demo/cgi/README".

#!/bin/sh
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
ls
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "1000000 0"
hg co 0
# B should disappear
ls