Issue 1: Sections are merged together.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4: 2
5: 00:01:13,083 --> 00:01:15,085
6: Bye world!
7:

Issue 2: Section numbers & timestamps are merged.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 200:01:13,083 --> 00:01:15,085
6: Bye world!
7:

Issue 3: Timestamps & texts are merged.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 2
6: 00:01:13,083 --> 00:01:15,085Bye world!
7:

Issue 4: Incorrect section numbers.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 83dh
6: 00:01:13,083 --> 00:01:15,085
7: Bye world!

Issue 5: Excessive newlines between timestamp and text.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 2
6: 00:01:13,083 --> 00:01:15,085
7:
8: Bye world!

Issue 6: Excessive newlines between section nr and timestamp.
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 2
6:
7: 00:01:13,083 --> 00:01:15,085
8: Bye world!

Issue 7: Excessive newlines in the beginning of the file.
1:
2: 1
3: 00:01:10,070 --> 00:01:12,063
4: Hello world!
5:
6: 2
7: 00:01:13,083 --> 00:01:15,085
8: Bye world!

Issue 8: Excessive newlines at the end of the file. (Not yet implemented!)
1: 1
2: 00:01:10,070 --> 00:01:12,063
3: Hello world!
4:
5: 2
6: 00:01:13,083 --> 00:01:15,085
7: Bye world!
8: