Document stuff needed to run autogen.sh

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
Remove extra \001

Fixes #42
Reformat

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
Fix use-after-free while handling %L

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>