Fix spacing in docs for tarfile (GH-20629)

Before
```
content.txt is 42 bytes in size and isa regular file.
folder is 420 bytes in size and isa directory.
magic is 4200 bytes in size and issomething else.
```

After:
```
content.txt is 42 bytes in size and is a regular file.
folder is 420 bytes in size and is a directory.
magic is 4200 bytes in size and is something else.
```

Automerge-Triggered-By: @orsenthil
This commit is contained in:
Harsha Laxman 2020-06-04 12:58:10 -07:00 committed by GitHub
parent 232dda6cbc
commit 7a280197f4
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