CDB: Clarify condition

compare() doesn't return bool, but negative, 0 or positive value.

Change-Id: I9f2becfa0980e0fb738ab27eaa651c45392385db
Reviewed-by: David Schulz <david.schulz@digia.com>

src/libs/qtcreatorcdbext/symbolgroupnode.cpp

@@ -426,7 +426,7 @@ DumpParameters::checkRecode(const std::string &type,
     switch (type.at(type.size() - 1)) {
     case '*':
         reformatType = ReformatPointer;
-        if (value.compare(0, 2, L"0x"))
+        if (value.compare(0, 2, L"0x") != 0)
             return result;
         break;
     case ']':