windows reserved word silently excluded - csync exclude.cpp

Proposal to solve nextcloud#3826, by excluding silently windows reserved word like $RECYCLE.BIN.

Signed-off-by: tomdereub <[email protected]>

src/csync/csync_exclude.cpp

@@ -174,7 +174,7 @@ static CSYNC_EXCLUDE_TYPE _csync_excluded_common(const QString &path, bool exclu
     }
 
     if (csync_is_windows_reserved_word(bname)) {
-        return CSYNC_FILE_EXCLUDE_INVALID_CHAR;
+        return CSYNC_FILE_SILENTLY_EXCLUDED;
     }
 
     // Filter out characters not allowed in a filename on windows