Make updated pijul happy

Dependencies

• [2] XBZHQ672 Day 1 solution
• [3] P7FRH2BN Initial commit
• [4] J4ZLIYPB Override linguist mis-detection.
• [5] HUHAFQLN 2021 day 1
• [6] UMRCR7E6
• [7] BNQRFDSX Start program for day 5.
• [8] B527MN66 Solve day 1 for 2020
• [9] CUOTDYHN Solution for day 9
• [10] QHYY7QXX Add expanded BASIC source
• [11] W7FIR7DH Day 8 solution
• [12] FCZSRIJ6 Part 2 of day 2
• [13] 77HPKKSD Day 10 solution
• [14] B5KU7GLG 2019 day 4 part 1
• [15] S5HFKJ5P Day 3 solutions
• [16] RF5UJPAI Add solution for 2010 day 16
• [17] PKG2KEMH Day 3 part 2
• [18] RECQJD4V Solution for d2020 day 18
• [19] IWN7EOTT Solution for 2020: day 2
• [20] ZW7LNZTW 2021: day 4 solution
• [21] P7M5N7HR Part 1 solution for 2021 day 4
• [22] M2AJCSV3 Solution for 2021 day 5
• [23] TCCBGQEU 2019 day 1
• [24] XNSA4VST Solution for 2021: day 6
• [25] VFUI7V5E 2020 day 13 solution
• [26] KLD6ACAI Solution for day 17
• [27] OCUJJOPF Day 12 solution
• [28] CXBL5MVC Skeleton for day7 (in RISC-V assembly)
• [29] GVGU5AS3 Add solution for day 5 2019
• [30] OJR2HVCE 2019: day 2 part 1
• [31] Z2RPGTOW Add day 2 part 2
• [32] IVWB6VSK Add solutions for 2019 day 3.
• [33] E5UDZGDT Solution for 2021 day 9 part 1
• [34] W6AJ2K3U Day 6 solution
• [35] JBL2GF5K Add part 2 for day 1 (didn't initially notice there was a part 2)
• [36] A6GUD6L2 Solution for day 4 part 2
• [37] 7C23M57W Solution for day 11 part 1
• [38] 7SAFZCBX Update .gitattributes
• [39] RSO3CMWG Day 4 solution
• [40] 764LSHBV Day 6 part 2
• [41] OB3KGO4Z Update .gitattributes
• [42] CGCJ7BDZ Solution for 2020 day 14
• [43] SSMVRH6K Day 4
• [44] AUANWDXP Add solution for 2020 day 15
• [45] 75CAQHMC Day 6.
• [46] YPL7UDRB Add solution for day 5 part 2 (still running because 6501 is slow)
• [47] 6S7OD5A7 Add day 5 and day 7 solutions
• [48] EF5QJNSQ Add day 2 solution
• [49] X3EX7STF Day 2
• [50] 5V6YWV5T Start on the problem for day 3

Change contents

• file move: README.md (----------) → README.md (----------)
  [6.1]

  [3.12]
• file move: 2021 (d--r------) → 2021 (d--r------)
  [6.1]

  [5.16]
• file move: 2020 (d--r------) → 2020 (d--r------)
  [6.1]

  [7.17]
• file move: 2019 (d--r------) → 2019 (d--r------)
  [6.1]

  [7.7]
• file move: 2017 (d--r------) → 2017 (d--r------)
  [6.1]

  [2.7]
• file move: .gitattributes (----------) → .gitattributes (----------)
  [6.1]

  [4.17]