feat: add --fastsync-server-path flag to configure remote server binary path

src/client/client_send.c

@@ -386,8 +386,8 @@ int send_files(Config* config) {
       fprintf(stderr, "Error: -f/--sendfile is not supported with SSH transport\n");
       return 1;
     }
-    client = client_connect_ssh(config->ssh_destination, config->ssh_port,
+    client =
-                                config->fastsync_server_path);
+        client_connect_ssh(config->ssh_destination, config->ssh_port, config->fastsync_server_path);
     if (!client)
       return 1;
   } else if (config->use_tls) {

src/shared/transport_ssh.c

@@ -174,7 +174,8 @@ Client* client_connect_ssh(const char* destination, int port, const char* server
     close(sv[0]);
     waitpid(pid, NULL, 0);
     remote_dest_destroy(&r);
-    fprintf(stderr, "Error: could not launch '%s --stdio' on remote\n", server_path ? server_path : "fastsync-server");
+    fprintf(stderr, "Error: could not launch '%s --stdio' on remote\n",
+            server_path ? server_path : "fastsync-server");
     return NULL;
   }