Expand and simplify specs #1

Job	Run time
check_format	1m 39s
x86_64-gnu-test (1.7.3)	32m 46s
x86_64-musl-test	35m 2s
x86_64-gnu-test (1.8.2)	33m 57s
x86_64-gnu-test-preview_mt	5m 37s
x86_64-gnu-test (1.9.2)	34m 20s
x86_64-gnu-test (1.10.1)	33m 21s
x86_64-gnu-test (1.11.2)	34m 52s
x86_64-gnu-test (1.12.2)	34m 57s
x86_64-gnu-test (1.13.3)	32m 56s
x86_64-gnu-test (1.14.0)	34m 18s
x86_64-gnu-test (1.0.0, FLAGS=-Dwithout_ffi USE_PCRE1=true)	33m 15s
x86_64-gnu-test (1.1.1, FLAGS=-Dwithout_ffi USE_PCRE1=true)	31m 59s
x86_64-gnu-test (1.2.2, USE_PCRE1=true)	33m 11s
x86_64-gnu-test (1.3.2, USE_PCRE1=true)	32m 0s
x86_64-gnu-test (1.4.1, USE_PCRE1=true)	35m 2s
x86_64-gnu-test (1.5.1, USE_PCRE1=true)	33m 35s
x86_64-gnu-test (1.6.2, USE_PCRE1=true)	32m 59s
	9h 5m 46s

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