fix typo in sjfz #310

Job	Run time
ucvm-build-cvmh-taper (3.7)	26m 47s
ucvm-build-cvms-cvmh (3.7)	27m 59s
ucvm-build-albacore-cvlsu-ivlsu-wfcvm (3.7)	25m 39s
	1h 20m 25s

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