lolunit: reverse the expected/actual logic.

CPPUNIT_ASSERT_EQUAL(a, b) “expects” the value “a” and fails if “b” is
different. The logic seems backwards to me, but matching CppUnit’s
output is important so I’m doing the same in LolUnit.

src/lol/unit.h

@@ -226,8 +226,8 @@ public:
                        << " (F) line: " << __LINE__ << " " \
                        << __FILE__ << std::endl; \
             m_errorlog << "equality assertion failed" << std::endl; \
-            m_errorlog << "- Expected: " << (b) << std::endl; \
-            m_errorlog << "- Actual  : " << (a) << std::endl; \
+            m_errorlog << "- Expected: " << (a) << std::endl; \
+            m_errorlog << "- Actual  : " << (b) << std::endl; \
             m_errorlog << message; \
             m_failure = true; \
             return; \
@@ -245,8 +245,8 @@ public:
                        << " (F) line: " << __LINE__ << " " \
                        << __FILE__ << std::endl; \
             m_errorlog << "double equality assertion failed" << std::endl; \
-            m_errorlog << "- Expected: " << (b) << std::endl; \
-            m_errorlog << "- Actual  : " << (a) << std::endl; \
+            m_errorlog << "- Expected: " << (a) << std::endl; \
+            m_errorlog << "- Actual  : " << (b) << std::endl; \
             m_errorlog << "- Delta   : " << (t) << std::endl; \
             m_errorlog << message; \
             m_failure = true; \