util: fix bare exit no-op in correlateRC.py

exit without parentheses is a no-op in Python; replace with exit(1)
so invalid res_unit/cap_unit arguments terminate the script immediately
instead of continuing with undefined res_scale/cap_scale variables.

Signed-off-by: Ashnaa Seth <ashnaaseth2325@gmail.com>
Signed-off-by: ashnaaseth2325-oss <ashnaaseth2325@gmail.com>

Author: ashnaaseth2325-oss

flow/util/correlateRC.py

@@ -73,7 +73,7 @@ def parse_args():
     res_scale = 1e3
 else:
     print("unknown resistance unit")
-    exit
+    exit(1)
 
 cap_unit = args.cap_unit
 if cap_unit == "ff":
@@ -82,7 +82,7 @@ def parse_args():
     cap_scale = 1e-12
 else:
     print("unknown capacitance unit")
-    exit
+    exit(1)
 
 
 def makeDict():