Identification of line numbers in replacements

Dependencies

• [2] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [3] I52XSRUH Massive cleanup, and simplification

Change contents

• replacement in libpijul/src/diff/replace.rs at line 74
  [2.782290]→[2.782290:782338](∅→∅)
  − if local.line == from_new {
  [2.782290]

  [2.782338]
  + if local.line == from_new + 1 {