Centralize handling of --help.

coreutils/cut.c

@@ -211,9 +211,6 @@ int cut_main(int argc, char **argv)
 	int i = 1;
 	int numberFilenames = 0;
 
-	if (argc == 1 || strcmp(argv[1], dash_dash_help)==0)
-		usage(cut_usage);
-
 	while (i < argc) {
 		if (argv[i][0] == '-') {
 			switch (argv[i++][1]) {

coreutils/hostid.c

@@ -25,9 +25,6 @@
 
 extern int hostid_main(int argc, char **argv)
 {
-	if (argc > 1 && strcmp(argv[1], "--help") == 0)
-		usage(hostid_usage);
-
 	printf("%lx\n", gethostid());
 	return(TRUE);
 }

coreutils/pwd.c

@@ -30,9 +30,6 @@ extern int pwd_main(int argc, char **argv)
 {
 	char buf[BUFSIZ + 1];
 
-	if (argc > 1 && strcmp(argv[1], "--help") == 0)
-		usage(pwd_usage);
-
 	if (getcwd(buf, sizeof(buf)) == NULL)
 		fatalError("%s\n", strerror(errno));
 

coreutils/test.c

@@ -188,9 +188,6 @@ test_main(int argc, char** argv)
 			fatalError("missing ]\n");
 		argv[argc] = NULL;
 	}
-	if (strcmp(argv[1], dash_dash_help) == 0)
-		usage(test_usage);
-
 	/* Implement special cases from POSIX.2, section 4.62.4 */
 	switch (argc) {
 	case 1: