Tweak program to insure output file gets removed.

testsuite/expect/test1.47

@@ -79,7 +79,7 @@ if {$matches != 1} {
 	set exit_code 1
 }
 
-exec $bin_rm -f $file_in
+exec $bin_rm -f $file_in $file_out
 exec echo "#!$bin_bash"              >$file_in
 exec echo "#SLURM -N650000"         >>$file_in
 exec echo "$bin_sleep $delay"       >>$file_in
@@ -108,8 +108,8 @@ expect {
 # Post-processing
 #
 if {$exit_code == 0} {
-	exec $bin_rm -f $file_in
-	exec $bin_rm -f $file_out
+	wait_for_file $file_out
+	exec $bin_rm -f $file_in $file_out
 	send_user "\nSUCCESS\n"
 }
 exit $exit_code