Add note about --migrate only working with minetestserver or --server

diff --git a/src/main.cpp b/src/main.cpp
index 98b600f9dc0c312bab7ba1228a3c69fa547a9445..ca3c3bc5d7025a373eb4bc5af621bcc25d2de3ee 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -796,7 +796,7 @@ int main(int argc, char *argv[])
                        _("Set gameid (\"--gameid list\" prints available ones)"))));
        #if USE_LEVELDB
        allowed_options.insert(std::make_pair("migrate", ValueSpec(VALUETYPE_STRING,
-                       _("Migrate from current map backend to another"))));
+                       _("Migrate from current map backend to another (Only works when using minetestserver or with --server)"))));
        #endif
 #ifndef SERVER
        allowed_options.insert(std::make_pair("videomodes", ValueSpec(VALUETYPE_FLAG,