Adds newline to final output of tests

rmutil/test_heap.c

@@ -32,7 +32,7 @@ int main(int argc, char **argv) {
     assert(99 == n);
 
     Vector_Free(v);
-    printf("PASS!");
+    printf("PASS!\n");
     return 0;
 }
 

rmutil/test_priority_queue.c

@@ -32,6 +32,6 @@ int main(int argc, char **argv) {
     assert(15 == n);
 
     Priority_Queue_Free(pq);
-    printf("PASS!");
+    printf("PASS!\n");
     return 0;
 }

rmutil/test_vector.c

@@ -53,7 +53,7 @@ int main(int argc, char **argv) {
     assert (rc == 0);
     
     Vector_Free(v);
-    printf("PASS!");
+    printf("PASS!\n");
     
     return 0;
     //Vector_Push(v, "hello");