pub const PRUNE_LOG_LIMIT: usize = 100;Expand description
How many passes the prune log keeps in full, per-directory detail.
Not the same decision as PRUNE_HISTORY_LIMIT, and deliberately a different number:
that one is four integers per pass inside a file every command parses, this one is a
line per pass in a file only devp history opens. A hundred passes of a realistic
size is well under a megabyte; the oldest come off the front.