Order license mapping alphabetically

Author: Opsmithe

scripts/1-fetch/arxiv_fetch.py

@@ -57,18 +57,18 @@
 
 # License mapping for structured data from OAI-PMH
 LICENSE_MAPPING = {
-    "http://creativecommons.org/licenses/by/4.0/": "CC BY 4.0",
     "http://creativecommons.org/licenses/by/3.0/": "CC BY 3.0",
-    "http://creativecommons.org/licenses/by-sa/4.0/": "CC BY-SA 4.0",
-    "http://creativecommons.org/licenses/by-sa/3.0/": "CC BY-SA 3.0",
-    "http://creativecommons.org/licenses/by-nc/4.0/": "CC BY-NC 4.0",
+    "http://creativecommons.org/licenses/by/4.0/": "CC BY 4.0",
     "http://creativecommons.org/licenses/by-nc/3.0/": "CC BY-NC 3.0",
-    "http://creativecommons.org/licenses/by-nc-sa/4.0/": "CC BY-NC-SA 4.0",
-    "http://creativecommons.org/licenses/by-nc-sa/3.0/": "CC BY-NC-SA 3.0",
-    "http://creativecommons.org/licenses/by-nc-nd/4.0/": "CC BY-NC-ND 4.0",
+    "http://creativecommons.org/licenses/by-nc/4.0/": "CC BY-NC 4.0",
     "http://creativecommons.org/licenses/by-nc-nd/3.0/": "CC BY-NC-ND 3.0",
-    "http://creativecommons.org/licenses/by-nd/4.0/": "CC BY-ND 4.0",
+    "http://creativecommons.org/licenses/by-nc-nd/4.0/": "CC BY-NC-ND 4.0",
+    "http://creativecommons.org/licenses/by-nc-sa/3.0/": "CC BY-NC-SA 3.0",
+    "http://creativecommons.org/licenses/by-nc-sa/4.0/": "CC BY-NC-SA 4.0",
     "http://creativecommons.org/licenses/by-nd/3.0/": "CC BY-ND 3.0",
+    "http://creativecommons.org/licenses/by-nd/4.0/": "CC BY-ND 4.0",
+    "http://creativecommons.org/licenses/by-sa/3.0/": "CC BY-SA 3.0",
+    "http://creativecommons.org/licenses/by-sa/4.0/": "CC BY-SA 4.0",
     "http://creativecommons.org/licenses/publicdomain": "CC CERTIFICATION 1.0 US",
     "http://creativecommons.org/publicdomain/zero/1.0/": "CC0 1.0",
     "http://creativecommons.org/share-your-work/public-domain/cc0/": "CC0",