With the two new APIs of parse options added in the previous
commit, we parse the multiple '-L n,m <pathspec>' syntax.
Notice that users can give more than one '-L n,m' for each pathspec.
And a pathspec with all its '-L' options maps to a single
diff_line_range structure.
This has the exactly the same semantics as 'git blame -L n,m <pathspec>'
because we refactored and reused the blame code.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
b585e491cf