Changed logger from warning to debug to reduce output statements in a…

…rc log

arc/common.py

@@ -969,7 +969,7 @@ def almost_equal_coords(xyz1: dict,
         raise TypeError(f'xyz1 and xyz2 must be dictionaries, got {type(xyz1)} and {type(xyz2)}:\n{xyz1}\n{xyz2}')
     for symbol_1, symbol_2 in zip(xyz1['symbols'], xyz2['symbols']):
         if symbol_1 != symbol_2:
-            logger.warning(f"Cannot compare coords, xyz1 and xyz2 have different symbols:"
+            logger.debug(f"Cannot compare coords, xyz1 and xyz2 have different symbols:"
                            f"\n{xyz1['symbols']}\nand:\n{xyz2['symbols']}")
     for xyz_coord1, xyz_coord2 in zip(xyz1['coords'], xyz2['coords']):
         for xyz1_c, xyz2_c in zip(xyz_coord1, xyz_coord2):