Exit after `--dump-user-agent`

Bug in d1b5f70bc9f9dcda1544b88b42ecc25f7f7aa1c7

Closes #3055

diff --git a/yt_dlp/__init__.py b/yt_dlp/__init__.py
index 9138ec46495f8a423febaa405aae7ff4060169b7..a433c4513b904f2167962986d6bf3a6c0bebcf9b 100644 (file)
--- a/yt_dlp/__init__.py
+++ b/yt_dlp/__init__.py
@@ -822,6 +822,7 @@ def _real_main(argv=None):
     if opts.dump_user_agent:
         ua = traverse_obj(opts.headers, 'User-Agent', casesense=False, default=std_headers['User-Agent'])
         write_string(f'{ua}\n', out=sys.stdout)
+        sys.exit(0)
 
     if print_extractor_information(opts, all_urls):
         sys.exit(0)