CURLOPT_SSH_COMPRESSION.3: enable with 1L

(leaves other values reserved for the future)

docs/libcurl/opts/CURLOPT_SSH_COMPRESSION.3

@@ -28,12 +28,12 @@ CURLOPT_SSH_COMPRESSION \- enables automatic decompression of HTTP downloads
 
 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_COMPRESSION, long enable);
 .SH DESCRIPTION
-Pass a long as parameter to enable or disable.
+Pass a long as parameter set to 1L to enable or 0L to disable.
 
-Enables built-in SSH compression.
-This is a request, not an order; the server may or may not do it.
+Enables built-in SSH compression.  This is a request, not an order; the server
+may or may not do it.
 .SH DEFAULT
-
+0, disabled
 .SH PROTOCOLS
 All SSH based protocols: SCP, SFTP
 .SH EXAMPLE