[PATCH 0/2] Fix --rebase-merges with custom commentChar

[Daniel Harding <dharding@xxxxxxxxxxxxx>]

I have core.commentChar set in my .gitconfig, and when I tried to run
git rebase -i -r, I received an error message like the following:

error: invalid line 3: # Branch <name>

To fix this, I updated sequencer.c to use the configured commentChar
for the Branch <name> comments.  I also tweaked the tests in t3430 to
verify todo list generation with a custom commentChar.  I'm not sure
if I took the right approach with that, or if it would be better to
add additional tests for that case, so feel free to
tweak/replace/ignore the second commit as appropriate.

Thanks,

Daniel Harding