md2html: do not loosen tight lists with multi-line items

The list-interrupt preprocessor inserted a blank line before any bullet
that followed a non-item, non-4-space-indented line. When a list item
wrapped onto a 2-space-indented continuation line, the *next* item looked
like a paragraph->list transition, so a blank got injected between items
— turning a tight list into a loose one (every <li> wrapped in <p>), as
seen in docs/internals.md "Writing programs in C".

Track list state and only interrupt an actual paragraph: a bullet that
continues an already-open list (or its indented continuation lines) no
longer triggers a blank-line insert. The original paragraph->list
interrupt and the "1985." ordered-list guard are unchanged.

0 files changed, 0 insertions, 0 deletions