Close socket on descruct

[Nyholm]

When inspecting the code I did not find that we close the socket. We only close it on Exception. This PR will fix that.

Original issue is here: php-http/logger-plugin#3

Ping @soullivaneuh

[soullivaneuh]

Unfortunately, it does not solve the issue:

sullivan@5928a6b35210:/code$ php test.php 
Running: 1	ExitCode: 0	LSOF: 32
Running: 1	ExitCode: 0	LSOF: 35
Running: 1	ExitCode: 0	LSOF: 38
Running: 1	ExitCode: 0	LSOF: 41
Running: 1	ExitCode: 0	LSOF: 44
Running: 1	ExitCode: 0	LSOF: 47
Running: 1	ExitCode: 0	LSOF: 50
Running: 1	ExitCode: 0	LSOF: 53
Running: 1	ExitCode: 0	LSOF: 56
Running: 1	ExitCode: 0	LSOF: 59
Running: 1	ExitCode: 0	LSOF: 62
Running: 1	ExitCode: 0	LSOF: 65
Running: 1	ExitCode: 0	LSOF: 68
Running: 1	ExitCode: 0	LSOF: 71
Running: 1	ExitCode: 0	LSOF: 74
Running: 1	ExitCode: 0	LSOF: 77
Running: 1	ExitCode: 0	LSOF: 80
Running: 1	ExitCode: 0	LSOF: 83
Running: 1	ExitCode: 0	LSOF: 86
Running: 0	ExitCode: 0	LSOF: 89

[Nyholm]

Okey, Thank you for testing.

As we discussed on Slack: (@joelwurtz @kelunik)

AFAIK php close socket when it's garbage collected and do it better than using fclose