gh-171: Fix test passing/inv-return-type.pre.

Author: python-processing-unit

tests/cases/passing/inv-return-type.pre

@@ -1,3 +1,3 @@
-ASSERT(EQ(TYPE(INV(<"one" = 0d1>)), "MAP"))MAP: m = <"a" = "x">
-
-ASSERT(EQ(TYPE(INV(m)), "MAP"))
+ASSERT(EQ(TYPE(INV(<"one" = 0d1>)), "MAP"))
+MAP: m = <"a" = "x">
+ASSERT(EQ(TYPE(INV(m)), "MAP"))