Merge pull request #450 from MIT-LCP/flac-wrsamp-multifile

Handle more than 8 compressed signals in wrsamp

Author: tompollard

wfdb/io/_header.py

@@ -384,6 +384,7 @@ def _auto_signal_file_names(self):
                     num_groups += 1
                     channels_in_group = 0
             group_number.append(num_groups)
+            channels_in_group += 1
             prev_fmt = ch_fmt
             prev_spf = ch_spf