change results of text.nameext_from_url()

Instead of getting a complete 'filename' from an URL and splitting that
into 'name' and 'extension', the new approach gets rid of the complete
version and renames 'name' to 'filename'. (Using anything other than
{extension} for a filename extension doesn't really work anyway)

Example: "https://example.org/path/filename.ext"

before:
- filename : filename.ext
- name     : filename
- extension: ext

now:
- filename : filename
- extension: ext

gallery_dl/extractor/hentaihere.py

@@ -26,7 +26,7 @@ class HentaihereChapterExtractor(HentaihereBase, ChapterExtractor):
     pattern = r"(?:https?://)?(?:www\.)?hentaihere\.com/m/S(\d+)/(\d+)"
     test = ("https://hentaihere.com/m/S13812/1/1/", {
         "url": "964b942cf492b3a129d2fe2608abfc475bc99e71",
-        "keyword": "e9382a9be337abce3db2b1132e85751379dc05c5",
+        "keyword": "cbcee0c0eb178c4b87f06a834085784f8dddad24",
     })
 
     def __init__(self, match):