qa: rfork(RFNAMEG) on tests that are going to rfork(RFNOMNT) later

qa/kern/getpid.c

@@ -23,6 +23,7 @@ main(void)
 {
 	int pid;
 
+	rfork(RFNAMEG);
 	pid = getmainpid(); // this comes from exec() syscall
 
 	if(getpid() != pid){

qa/kern/getppid.c

@@ -24,6 +24,7 @@ main(void)
 	int ppid;
 	Waitmsg *w;
 
+	rfork(RFNAMEG);
 	if(rfork(RFPROC) == 0){
 		ppid = getmainpid(); // this comes from exec() syscall
 

qa/lib/c/asmscall.c

@@ -28,8 +28,16 @@ main(void)
 	char *msg;
 
 	start = sys_remove("#c/time");
+	if (start == -1){
+		print("FAIL: start: remove #c/time: %r");
+		exits("FAIL");
+	}
 	sleep(1);
 	end = sys_remove("#c/time");
+	if (end == -1){
+		print("end: start: remove #c/time: %r");
+		exits("FAIL");
+	}
 
 	if (end <= start)
 		ret = 1;