Fix linter

Author: AdamRJensen

pvlib/iotools/bsrn.py

@@ -163,7 +163,6 @@ def get_bsrn(station, start, end, username, password,
 
     # Generate list files to download based on start/end (SSSMMYY.dat.gz)
     filenames = pd.date_range(start.date().replace(day=1), end, freq='1MS')\
-
         .strftime(f"{station}%m%y.dat.gz").tolist()
 
     # Create FTP connection