Update files from the datasets library (from 1.5.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.5.0

wikiann.py

@@ -296,7 +296,7 @@ class Wikiann(datasets.GeneratorBasedBuilder):
             ner_tags = []
             langs = []
             for line in f:
-                if line.startswith("-DOCSTART-") or line == "" or line == "\n":
+                if line == "" or line == "\n":
                     if tokens:
                         yield guid_index, {"tokens": tokens, "ner_tags": ner_tags, "langs": langs}
                         guid_index += 1
@@ -307,8 +307,8 @@ class Wikiann(datasets.GeneratorBasedBuilder):
                     # wikiann data is tab separated
                     splits = line.split("\t")
                     # strip out en: prefix
-                    langs.append(splits[0][:2])
-                    tokens.append(splits[0][3:])
+                    langs.append(splits[0].split(":")[0])
+                    tokens.append(":".join(splits[0].split(":")[1:]))
                     if len(splits) > 1:
                         ner_tags.append(splits[-1].replace("\n", ""))
                     else: