filenames = ['1-bundesliga-i.txt', '1-bundesliga-ii.txt']
with open('bundesliga2016.txt', 'w') as outfile:
    for fname in filenames:
        with open(fname) as infile:
            for line in infile:
                outfile.write(line)
        outfile.write('\n')
outfile.close()
@@ -80,9 +80,9 @@
 a201
-6
+7
 .txt
@@ -282,8 +282,10 @@
 .close()
+%0D%0A

Update merger.py