Fix coding style

- Use block for single statement ifs
- Keep lines to reasonable length (current debate as to reasonable)
- When functions return -1 for error test against 0 not -1
- Do not indent cases another level
- Do not test against NULL and 0 explicitly
- Use tabs for indentation, use spaces for alignment

components/uptime.c

@@ -49,7 +49,7 @@ format(int uptime)
 
 		size = sizeof(boottime);
 
-		if (sysctl(mib, 2, &boottime, &size, NULL, 0) == -1) {
+		if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
 			fprintf(stderr, "sysctl 'KERN_BOOTTIME': %s\n", strerror(errno));
 			return NULL;
 		}