Testament: refactoring; makes the test joiner green

tests/misc/tack.nim

@@ -16,3 +16,4 @@ proc ack(x, y: int): int =
 
 # echo(ack(0, 0))
 write(stdout, ack(3, 4)) #OUT 125
+write stdout, "\n"

tests/misc/tpos.nim

@@ -29,4 +29,5 @@ proc mypos(sub, s: string, start: int = 0): int =
 var sub = "hello"
 var s = "world hello"
 write(stdout, mypos(sub, s))
+write stdout, "\n"
 #OUT 6