ITS#8831 move flag init into readhdr

Avoid stomping on flags from 1st readhdr invocation

external/db_drivers/liblmdb/mdb_load.c

@@ -78,6 +78,7 @@ static void readhdr(void)
 {
 	char *ptr;
 
+	flags = 0;
 	while (fgets(dbuf.mv_data, dbuf.mv_size, stdin) != NULL) {
 		lineno++;
 		if (!strncmp(dbuf.mv_data, "VERSION=", STRLENOF("VERSION="))) {
@@ -396,7 +397,6 @@ int main(int argc, char *argv[])
 	while(!Eof) {
 		MDB_val key, data;
 		int batch = 0;
-		flags = 0;
 		int appflag;
 
 		if (!dohdr) {