Print warnings in CTable if you feed it with unknown columns

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1223 726aef4b-f618-498e-8847-2d620e286838

Utils.cpp

@@ -8,6 +8,7 @@
 
 #include "Utils.h"
 #include "MD5.h"
+#include "main.h"
 #include <errno.h>
 #ifdef HAVE_LIBSSL
 #include <openssl/ssl.h>
@@ -522,6 +523,8 @@ unsigned int CTable::GetColumnIndex(const CString& sName) const {
 			return i;
 	}
 
+	DEBUG_ONLY(cout << "CTable::GetColumnIndex(" + sName + ") failed" << endl);
+
 	return 0;
 }