Print config filename before reading it

youtube_dl/options.py

@@ -45,6 +45,8 @@ def parseOpts(overrideArguments=None):
         except IOError:
             return default  # silently skip if file is not present
         try:
+            if opts.verbose:
+                write_string('[debug] Reading options from: %s\n' % repr(filename_bytes))
             # FIXME: https://github.com/ytdl-org/youtube-dl/commit/dfe5fa49aed02cf36ba9f743b11b0903554b5e56
             contents = optionf.read()
             if sys.version_info < (3,):