fixup! ruff format

Author: bualust

plottery/plottery.py

@@ -9,7 +9,7 @@
 import numpy as np
 import yaml
 from matplotlib.gridspec import GridSpec
-from optparse import OptionParser
+from optparse import OptionParser, OptionError
 import re
 
 # ==============================================================
@@ -39,7 +39,8 @@ def main():
 
     try:
         (options, args) = parser.parse_args()
-    except:
+    except OptionError as e:
+        print(f"Argument error: {e}")
         parser.print_help()
         exit()