Fix missing f string

Author: benjeffery

bio2zarr/vcf.py

@@ -1976,7 +1976,7 @@ def finalise_array(self, name):
     def finalise(self, show_progress=False):
         self.load_metadata()
 
-        logger.info("Scanning {self.num_partitions} partitions")
+        logger.info(f"Scanning {self.num_partitions} partitions")
         missing = []
         # TODO may need a progress bar here
         for partition_id in range(self.num_partitions):