expand: make tab explicit in test #1540

Job	Run time
Build the fuzzers	3m 11s
Run the fuzzers (fuzz_test, true)	3m 32s
Run the fuzzers (fuzz_date, false)	3m 14s
Run the fuzzers (fuzz_expr, true)	3m 38s
Run the fuzzers (fuzz_printf, false)	2m 37s
Run the fuzzers (fuzz_echo, true)	3m 41s
Run the fuzzers (fuzz_seq, false)	2m 41s
Run the fuzzers (fuzz_sort, false)	2m 50s
Run the fuzzers (fuzz_wc, false)	2m 54s
Run the fuzzers (fuzz_cut, false)	2m 35s
Run the fuzzers (fuzz_split, false)	3m 10s
Run the fuzzers (fuzz_parse_glob, true)	3m 31s
Run the fuzzers (fuzz_parse_size, true)	3m 28s
Run the fuzzers (fuzz_parse_time, true)	3m 34s
	44m 36s

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