add a missing space between sample fetch name and colon, and make
haproxy-dconv happier.
tracked key will be looked up into this alternate table instead of the table
currently being tracked.
-bc_http_major: integer
+bc_http_major : integer
Returns the backend connection's HTTP major version encoding, which may be 1
for HTTP/0.9 to HTTP/1.1 or 2 for HTTP/2. Note, this is based on the on-wire
encoding and not the version present in the request header.