fix compiler warnings:

- defined but not used
- deprecated conversion from string constant to ‘char*’

test/unit/utRemoveComments.cpp

@@ -43,7 +43,7 @@ void RemoveCommentsTest :: testSingleLineComments (void)
 // ------------------------------------------------------------------------------------------------
 void RemoveCommentsTest :: testMultiLineComments (void)
 {
-	char* szTest = 
+	const char* szTest = 
 		"/* comment to be removed */\n"
 		"valid text /* \n "
 		" comment across multiple lines */"
@@ -62,4 +62,4 @@ void RemoveCommentsTest :: testMultiLineComments (void)
 	CPPUNIT_ASSERT(0 == ::strcmp(szTest2,szTestResult));
 
 	delete[] szTest2;
-}
+}