nbd: fix build failure after openunix/opennet refactor

Commit 17043b0 ("Refactor the negotiate() and connected functions")
removed all parameters from openunix() and opennet(), but main()
still called them with host/port arguments. This causes build errors:

nbd-client.c:1224:32: error: too many arguments to function ‘openunix’; expected 0, have 1
nbd-client.c:1226:32: error: too many arguments to function ‘opennet’; expected 0, have 2

Update the calls in main() to match the new prototypes.

Fixes: 17043b0 ("Refactor the negotiate() and connected functions")
Signed-off-by: Yunseong Kim <ysk@kzalloc.com>
Signed-off-by: Wouter Verhelst <w@uter.be>

Author: kzall0c

nbd-client.c

@@ -1221,9 +1221,9 @@ int main(int argc, char *argv[]) {
 
 	for (i = 0; i < cur_client->nconn; i++) {
 		if (cur_client->b_unix)
-			sock = openunix(cur_client->hostn);
+			sock = openunix();
 		else
-			sock = opennet(cur_client->hostn, cur_client->port);
+			sock = opennet();
 		if (sock < 0)
 			exit(EXIT_FAILURE);