Unlimited line_width with -1 #308

Job	Run time
ruby-versions / Generate Ruby versions	2s
build (2.5, 0.1.7, /tmp/local)	1m 10s
build (2.5, 0.1.7)	36s
build (2.5, 0.2.5, /tmp/local)	48s
build (2.5, 0.2.5)	41s
build (2.6, 0.1.7, /tmp/local)	1m 0s
build (2.6, 0.1.7)	38s
build (2.6, 0.2.5, /tmp/local)	49s
build (2.6, 0.2.5)	28s
build (2.7, 0.1.7, /tmp/local)	1m 1s
build (2.7, 0.1.7)	31s
build (2.7, 0.2.5, /tmp/local)	48s
build (2.7, 0.2.5)	29s
build (3.0, 0.1.7, /tmp/local)	21s
build (3.0, 0.1.7)	15s
build (3.0, 0.2.5, /tmp/local)	29s
build (3.0, 0.2.5)	32s
build (3.1, 0.1.7, /tmp/local)	23s
build (3.1, 0.1.7)	19s
build (3.1, 0.2.5, /tmp/local)	24s
build (3.1, 0.2.5)	23s
build (3.2, 0.1.7, /tmp/local)	26s
build (3.2, 0.1.7)	30s
build (3.2, 0.2.5, /tmp/local)	26s
build (3.2, 0.2.5)	19s
build (3.3, 0.1.7, /tmp/local)	44s
build (3.3, 0.1.7)	21s
build (3.3, 0.2.5, /tmp/local)	52s
build (3.3, 0.2.5)	16s
build (head, 0.1.7, /tmp/local)	22s
build (head, 0.1.7)	15s
build (head, 0.2.5, /tmp/local)	24s
build (head, 0.2.5)	17s
	17m 19s

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