[options] Alias `--write-comments`, `--no-write-comments`

Closes: #264

README.md

@@ -483,10 +483,13 @@ Then simply run `make`. You can also run `make yt-dlp` instead to compile only t
                                      could still contain some personal
                                      information (default)
     --no-clean-infojson              Write all fields to the infojson
-    --get-comments                   Retrieve video comments to be placed in the
+    --write-comments                 Retrieve video comments to be placed in the
-                                     .info.json file. The comments are fetched
+                                     infojson. The comments are fetched even
-                                     even without this option if the extraction
+                                     without this option if the extraction is
-                                     is known to be quick
+                                     known to be quick (Alias: --get-comments)
+    --no-write-comments              Do not retrieve video comments unless the
+                                     extraction is known to be quick
+                                     (Alias: --no-get-comments)
     --load-info-json FILE            JSON file containing the video information
                                      (created with the "--write-info-json"
                                      option)

yt_dlp/options.py

@@ -1048,11 +1048,15 @@ def parseOpts(overrideArguments=None):
         action='store_false', dest='clean_infojson',
         help='Write all fields to the infojson')
     filesystem.add_option(
-        '--get-comments',
+        '--write-comments', '--get-comments',
         action='store_true', dest='getcomments', default=False,
         help=(
-            'Retrieve video comments to be placed in the .info.json file. '
+            'Retrieve video comments to be placed in the infojson. '
-            'The comments are fetched even without this option if the extraction is known to be quick'))
+            'The comments are fetched even without this option if the extraction is known to be quick (Alias: --get-comments)'))
+    filesystem.add_option(
+        '--no-write-comments', '--no-get-comments',
+        action='store_true', dest='getcomments', default=False,
+        help='Do not retrieve video comments unless the extraction is known to be quick (Alias: --no-get-comments)')
     filesystem.add_option(
         '--load-info-json', '--load-info',
         dest='load_info_filename', metavar='FILE',