Fix uninitialized warning

when shadow.cfg does not exist, parsing should return an
empty hash instead of displaying a warning

diff --git a/PVE/Auth/PVE.pm b/PVE/Auth/PVE.pm
index 71479979eea163f47787f9d2e96fe0d869121f55..8714a6b6a5131a47ab65942c9402d9025736f20f 100755 (executable)
--- a/PVE/Auth/PVE.pm
+++ b/PVE/Auth/PVE.pm
@@ -19,6 +19,8 @@ sub parse_shadow_passwd {
 
     my $shadow = {};
 
+    return $shadow if !defined($raw);
+
     while ($raw =~ /^\s*(.+?)\s*$/gm) {
        my $line = $1;