Adjust branding in datadir lock error message

src/init.cpp

@@ -568,7 +568,7 @@ bool AppInit2(boost::thread_group& threadGroup)
     if (file) fclose(file);
     static boost::interprocess::file_lock lock(pathLockFile.string().c_str());
     if (!lock.try_lock())
-        return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin is probably already running."), strDataDir));
+        return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin Core is probably already running."), strDataDir));
 
     if (GetBoolArg("-shrinkdebugfile", !fDebug))
         ShrinkDebugFile();