logging: Fix off-by-one for shrinkdebugfile

Author: MarcoFalke

src/init.cpp

@@ -1185,7 +1185,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
 #ifndef WIN32
     CreatePidFile(GetPidFile(), getpid());
 #endif
-    if (GetBoolArg("-shrinkdebugfile", logCategories != BCLog::NONE)) {
+    if (GetBoolArg("-shrinkdebugfile", logCategories == BCLog::NONE)) {
         // Do this first since it both loads a bunch of debug.log into memory,
         // and because this needs to happen before any other debug.log printing
         ShrinkDebugFile();