tests(commands): fix confirm before test #116

Job	Run time
build (ubuntu-latest, 1.8, tmux_1_8)	41s
build (ubuntu-latest, 1.9, tmux_1_9)	29s
build (ubuntu-latest, 1.9a, tmux_1_9a)	46s
build (ubuntu-latest, 2.0, tmux_2_0)	41s
build (ubuntu-latest, 2.1, tmux_2_1)	1m 3s
build (ubuntu-latest, 2.2, tmux_2_2)	50s
build (ubuntu-latest, 2.3, tmux_2_3)	34s
build (ubuntu-latest, 2.4, tmux_2_4)	49s
build (ubuntu-latest, 2.5, tmux_2_5)	39s
build (ubuntu-latest, 2.6, tmux_2_6)	32s
build (ubuntu-latest, 2.7, tmux_2_7)	35s
build (ubuntu-latest, 2.8, tmux_2_8)	29s
build (ubuntu-latest, 2.9, tmux_2_9)	39s
build (ubuntu-latest, 2.9a, tmux_2_9a)	36s
build (ubuntu-latest, 3.0, tmux_3_0)	32s
build (ubuntu-latest, 3.0a, tmux_3_0a)	32s
build (ubuntu-latest, 3.1, tmux_3_1)	55s
build (ubuntu-latest, 3.1a, tmux_3_1a)	32s
build (ubuntu-latest, 3.1b, tmux_3_1b)	52s
build (ubuntu-latest, 3.1c, tmux_3_1c)	50s
build (ubuntu-latest, 3.2, tmux_3_2)	38s
build (ubuntu-latest, 3.2a, tmux_3_2a)	40s
build (ubuntu-latest, 3.3, tmux_3_3)	39s
build (ubuntu-latest, 3.3a, tmux_3_3a)	36s
build (ubuntu-latest, 3.4, tmux_3_4)	54s
build (ubuntu-latest, master, tmux_X_X)	52s
	17m 55s

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