Anton Kaliaev 4123d54bf6 change service#Start to return just error (Refs #45) ...

```
@melekes
yeah, bool is superfluous
@ethanfrey
If I remember correctly when I was writing test code, if I call Start() on a Service that is already running, it returns (false, nil). Only if I try to legitimately start it, but it fails in startup do I get an error.
The distinction is quite important to make it safe for reentrant calls. The other approach would be to have a special error type like ErrAlreadyStarted, then check for that in your code explicitly. Kind of like if I make a db call in gorm, and get an error, I check if it is a RecordNotFound error, or whether there was a real error with the db query.
@melekes
Ah, I see. Thanks. I must say I like ErrAlreadyStarted approach more (not just in Golang)
```

2017-11-06 12:18:04 -05:00

..

array.go

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async.go

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bit_array_test.go

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bit_array.go

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byteslice.go

common: Fingerprint comment

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cmap_test.go

use assert.Contains in cmap_test

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cmap.go

Make iterating over keys possible (#63)

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colors.go

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date_test.go

changelog and PR changes

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date.go

changelog and PR changes

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errors.go

linting: add to Makefile & do some fixes

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heap.go

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http_test.go

linting: add to Makefile & do some fixes

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http.go

http: http-utils added after extraction

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int.go

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io.go

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LICENSE

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math.go

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net_test.go

common: ProtocolAndAddress

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net.go

common: ProtocolAndAddress

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os_test.go

make GoPath a function

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os.go

use os.Process#Kill (Fixes #73)

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random.go

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repeat_timer.go

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service_test.go

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service.go

change service#Start to return just error (Refs #45)

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string.go

linting: add to Makefile & do some fixes

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throttle_timer.go

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word.go

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