D29880.diff
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	Index: lib/libc/sys/fork.2
	===================================================================
	--- lib/libc/sys/fork.2
	+++ lib/libc/sys/fork.2
	@@ -118,13 +118,20 @@
	case -1:
	err(1, "Failed to fork");
	case 0:
	+ /*
	+ * Using stdio safely around fork() requires at least flushing buffers
	+ * and ensuring that opened FILEs are in some consistent state right
	+ * at fork.
	+ */
	printf("Hello from child process!\en");
	+ fflush(stdout);
	exit(0);
	default:
	break;
	}

	printf("Hello from parent process (child's PID: %d)!\en", pid);
	+ fflush(stdout);

	return (0);
	}