v4.100.263

Agents

• The delimiter scan now says it covers the whole file, and quotes each
  bracket it names. A report said "the ( at column 30 is still open". The
  model counted the line by hand, reached a different ( at column 5, found it
  balanced and decided the scan was counting some other line. Reports now start
  "Delimiter scan of the whole file, read from line 1". Each bracket comes with
  the text just before it, for example "the ( at column 26 that follows
  …s.dc.forEach", so it can be found by searching. A crossing whose two ends
  are on one line says "both on line N". One that spans two lines names both
  lines. check_file's description says the same.