Fix the 'node list' command

No longer claim that 'list' is the default action (it's not).

If you want to list nodes, you need to specify the 'list' action.

Fix for issue #772

src/sbbs3/node.c

@@ -454,9 +454,9 @@ void printnodedat(int number, node_t node)
 
 void usage()
 {
-	printf("usage: node [-v[key]] [-debug] [action [on|off]] [node numbers] [...]"
+	printf("usage: node [-v[key]] [-debug] <action [on|off]> [node numbers] [...]"
 		"\n\n");
-	printf("actions (default action is 'list'):\n\n");
+	printf("actions:\n\n");
 	printf("    list        = list status\n");
 	printf("    anon        = anonymous user\n");
 	printf("    lock        = locked\n");
@@ -493,7 +493,7 @@ int main(int argc, char **argv)
 {
 	char str[256],ctrl_dir[MAX_PATH + 1],debug=0;
 	int sys_nodes,node_num=0,onoff=0;
-	int i,j,mode=0,misc;
+	int i,j,mode=-1,misc;
 	int	modify=0;
 	int loop=0;
 	int pause=0;
@@ -550,6 +550,8 @@ int main(int argc, char **argv)
 				if(argv[i][2])
 					strListPush(&key_list, argv[i] + 2);
 			}
+			else if(!stricmp(argv[i],"LIST"))
+				mode=MODE_LIST;
 			else if(!stricmp(argv[i],"LOCK"))
 				mode=MODE_LOCK;
 			else if(!stricmp(argv[i],"ANON"))
@@ -604,6 +606,8 @@ int main(int argc, char **argv)
 			}
 			else usage();
 		}
+		if(mode < 0)
+			usage();
 		if(mode!=MODE_LIST)
 			modify=1;