renamed writeln to writeLine in tests

tests/effects/teffects1.nim

@@ -13,7 +13,7 @@ type
 proc forw: int {. .}
   
 proc lier(): int {.raises: [IO2Error].} =
-  writeln stdout, "arg"
+  writeLine stdout, "arg"
 
 proc forw: int =
   raise newException(IOError, "arg")

tests/effects/teffects2.nim

@@ -13,7 +13,7 @@ type
 proc forw: int {.raises: [].}
 
 proc lier(): int {.raises: [IOError].} =
-  writeln stdout, "arg"
+  writeLine stdout, "arg"
 
 proc forw: int =
   raise newException(IOError, "arg")

tests/effects/teffects3.nim

@@ -12,7 +12,7 @@ type
   EIO2 = ref object of EIO
   
 proc raiser(): int {.tags: [TObj, FWriteIO].} =
-  writeln stdout, "arg"
+  writeLine stdout, "arg"
 
 var o: TObjB
 o.fn = raiser

tests/effects/teffects4.nim

@@ -15,7 +15,7 @@ proc q() {.tags: [FIO].} =
   nil
   
 proc raiser(): int =
-  writeln stdout, "arg"
+  writeLine stdout, "arg"
   if true:
     q()