sboupgrade: change //= construct to be more verbose

1 files changed, 1 insertions, 1 deletions

diff --git a/sboupgrade b/sboupgrade
index b78465e..6ac6250 100755
--- a/sboupgrade
+++ b/sboupgrade
@@ -124,7 +124,7 @@ my %inst_names;
 $inst_names{$_} = 1 for @$inst_names;
 my %updates;
 if (not $non_int or not $force) {
-	$updates //= get_available_updates();
+	$updates = get_available_updates() if not defined $updates;
 	$updates{$$_{name}} = 1 for @$updates;
 }