Fixing credit

Dependencies

• [2] GUL4M5FI Cleanup and formatting
• [3] NLGQAH4H Credit and reset relative to current directory instead of the root
• [4] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).

Change contents

• edit in pijul/src/commands/credit.rs at line 140
  [3.182206]→[2.1834:1943](∅→∅)
  − let st: u64 = v.start.into();

  − write!(self.w, "{}.{} > ", v.change.to_base32(), st)?;