Fixes tab parsing in LEF files
Fixes tab parsing in LEF files

Signed-off-by: Ethan Mahintorabi <a0d69f5f0ede7cdf6074313ada81e8c52dc16033@google.com>

QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,The-OpenROAD-Project/OpenROAD,QuantamHD/OpenROAD,QuantamHD/OpenROAD