fix tests #325

Job	Run time
Apache2 tests on Linux	2m 33s
C++ tests on Linux	2m 5s
Apache2 tests on macOS	2m 30s
C++ tests on macOS	4m 18s
Nginx tests on Linux	2m 7s
Nginx tests on macOS	3m 7s
Nginx dynamic module tests on Linux	1m 8s
Node.js tests on Linux	15s
Node.js tests on macOS	24s
Nginx dynamic module tests on macOS	1m 23s
Ruby tests on Linux	1m 4s
Passenger Standalone tests on Linux	4m 4s
Ruby tests on macOS	1m 9s
Passenger Standalone tests on macOS	5m 7s
Homebrew packaging tests	6m 56s
Source packaging tests	26s
	38m 36s

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