GNU: Improve the SKIP reporting #5328

Job	Run time
Build the fuzzers	3m 28s
Run the fuzzers (fuzz_test, true)	3m 51s
Run the fuzzers (fuzz_date, false)	3m 44s
Run the fuzzers (fuzz_expr, true)	3m 49s
Run the fuzzers (fuzz_printf, false)	2m 56s
Run the fuzzers (fuzz_echo, true)	3m 52s
Run the fuzzers (fuzz_seq, false)	2m 47s
Run the fuzzers (fuzz_sort, false)	3m 16s
Run the fuzzers (fuzz_wc, false)	2m 47s
Run the fuzzers (fuzz_cut, false)	2m 53s
Run the fuzzers (fuzz_split, false)	3m 1s
Run the fuzzers (fuzz_tr, false)	2m 54s
Run the fuzzers (fuzz_env, false)	2m 50s
Run the fuzzers (fuzz_parse_glob, true)	3m 48s
Run the fuzzers (fuzz_parse_size, true)	3m 47s
Run the fuzzers (fuzz_parse_time, true)	3m 49s
Run the fuzzers (fuzz_seq_parse_number, true)	3m 42s
	57m 14s

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