YamlReference-0.9.3: tests/c-b-block-header.n=2.itm.output
# B: 0, C: 0, L: 1, c: 0 I- # B: 1, C: 1, L: 1, c: 1 I7 # B: 2, C: 2, L: 1, c: 2 b\x0a # B: 3, C: 3, L: 2, c: 0 $(m,t)=(7,strip)
# B: 0, C: 0, L: 1, c: 0 I- # B: 1, C: 1, L: 1, c: 1 I7 # B: 2, C: 2, L: 1, c: 2 b\x0a # B: 3, C: 3, L: 2, c: 0 $(m,t)=(7,strip)