test:bool: improve printout

Author: scivision

test/bool/main.c

@@ -10,14 +10,14 @@ bool b = logical_not(true);
 int c = 0;
 
 if(b) {
-  fprintf(stderr, "logical_not(true) should be false\n");
+  fprintf(stderr, "logical_not(true) should be false: %d\n", b);
   c++;
 }
 
 b = logical_not(false);
 
 if (!b) {
-  fprintf(stderr, "logical_not(false) should be true\n");
+  fprintf(stderr, "logical_not(false) should be true: %d\n", b);
   c++;
 }