explicitely declare that functions take no parameters

clients/lcdproc/machine_OpenBSD.c

@@ -60,7 +60,8 @@ static int pageshift;
 #define pagetok(size) ((size) << pageshift)
 #define PROCSIZE(pp) ((pp).vm_tsize + (pp).vm_dsize + (pp).vm_ssize)
 
-int machine_init()
+
+int machine_init(void)
 {
 	/* get the page size with "getpagesize" and calculate pageshift from it */
 	int pagesize = getpagesize();
@@ -77,7 +78,7 @@ int machine_init()
 	return(TRUE);
 }
 
-int machine_close()
+int machine_close(void)
 {
 	return(TRUE);
 }