Slightly better CLI help text.

Author: Lukasa

hyper/cli.py

@@ -108,7 +108,9 @@ def make_troubleshooting_argument(parser):
         help='Show debugging information (loglevel=DEBUG)')
     parser.add_argument(
         '--h2', action='store_true', default=False,
-        help="Do HTTP/2 directly in plaintext: skip plaintext upgrade")
+        help="Do HTTP/2 directly, skipping plaintext upgrade and ignoring "
+             "NPN/ALPN."
+    )
 
 
 def split_host_and_port(hostname):