mm(1): revert changes to program_name

src/mm.c

@@ -125,7 +125,6 @@ int main(int argc, char *argv[]) {
 	size_t j;
 	size_t k; /* loop index but also unbuffer status */
 	int retval;
-	program_name = (argv[0] == NULL ? program_name : argv[0]);
 
 	/* Initializes the files structs with their default values, standard
 	 * input and standard output. If an input or an output is specified
@@ -150,6 +149,8 @@ int main(int argc, char *argv[]) {
 
 	k = 0;
 
+	if (argc > 0) { program_name = argv[0]; }
+
 	if (argc > 1) {
 		while ((c = getopt(argc, argv, "aehi:no:u")) != -1) {
 			switch (c){