Commit Briefs
show a list of paths changed in a commit with 'got log -P', and in tog
requested by matthieu@
fix and simplify blame algorithm
Always diff against latest version of file. This is much easier since there is no need to keep track of lines shifting around.
got_error_from_errno -> got_error_prefix_errno
also add got_error_prefix_errno2 and got_error_prefix_errno3 which should hopefully all be merged into a single function with variadic args (but can't alloc mem)