Fix DRC Rosetta Conversion Bug (Magic -> TritonRoute) (#2037)

This bug also affects the DRC checker and may have caused false negatives.

Author: kareefardi

scripts/drc_rosetta.py

@@ -380,7 +380,7 @@ def magic_to_tcl_cmd(output, magic_input):
 @click.argument("magic_input")
 def magic_to_tr_cmd(output, magic_input):
     with open(output, "w") as f:
-        magic_to_tr(open(magic_input).read(), f)
+        magic_to_tr(open(magic_input), f)
 
 
 magic.add_command(magic_to_tr_cmd)