Code improvement in function readErrorsFromChannel()

[nicolasdilley]

I think there could be a code improvement in function readErrorsFromChannel

the for loop declared at line 88 simply behaves as a
for range

- for {
-		err, ok := <-c
-		if !ok {
-			break
-		}
-		errs = append(errs, err.Error())
-	}

+ for err := range c {
+	errs = append(errs, err.Error())
+}

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[nicolasdilley]

@googlebot I signed it!

[nkubala]

thanks @nicolasdilley!