Fix Passenger Enterprise tests #321

Job	Run time
Apache2 tests on Linux	2m 7s
Apache2 tests on macOS	2m 53s
C++ tests on Linux	1m 21s
C++ tests on macOS	4m 36s
Nginx tests on Linux	2m 24s
Nginx tests on macOS	2m 37s
Homebrew packaging tests	7m 7s
Nginx dynamic module tests on Linux	1m 6s
Nginx dynamic module tests on macOS	1m 17s
Node.js tests on Linux	22s
Ruby tests on Linux	1m 6s
Node.js tests on macOS	28s
Ruby tests on macOS	1m 24s
Source packaging tests	26s
Passenger Standalone tests on Linux	4m 58s
Passenger Standalone tests on macOS	3m 55s
	38m 7s

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