[PATCH pve-storage 8/9] luncmd: lio: modernize remaining LUN command subroutines

["Max R. Carrara" <m.carrara@proxmox.com>]

As done with the subs before, make the `import_lun()`, `modify_lun()`,
and `add_view()` "proper" private subroutines.

Signed-off-by: Max R. Carrara <m.carrara@proxmox.com>
---
 src/PVE/Storage/LunCmd/LIO.pm | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/PVE/Storage/LunCmd/LIO.pm b/src/PVE/Storage/LunCmd/LIO.pm
index f4ad2ac8..534a0508 100644
--- a/src/PVE/Storage/LunCmd/LIO.pm
+++ b/src/PVE/Storage/LunCmd/LIO.pm
@@ -368,31 +368,31 @@ my sub delete_lun {
     die "Failed to delete LUN '$path'";
 }
 
-my $import_lun = sub {
+my sub import_lun {
     my ($scfg, $config, $timeout, $method, @params) = @_;
 
     return create_lun($scfg, $config, $timeout, $method, @params);
-};
+}
 
 # needed for example when the underlying ZFS volume has been resized
-my $modify_lun = sub {
+my sub modify_lun {
     my ($scfg, $config, $timeout, $method, @params) = @_;
     # Nothing to do on volume modification for LIO
-    return undef;
-};
+    return;
+}
 
-my $add_view = sub {
+my sub add_view {
     my ($scfg, $config, $timeout, $method, @params) = @_;
 
     return '';
-};
+}
 
 my %lun_cmd_map = (
     create_lu => sub { create_lun(@_) },
     delete_lu => sub { delete_lun(@_) },
-    import_lu => $import_lun,
-    modify_lu => $modify_lun,
-    add_view => $add_view,
+    import_lu => sub { import_lun(@_) },
+    modify_lu => sub { modify_lun(@_) },
+    add_view => sub { add_view(@_) },
     list_view => sub { list_view(@_) },
     list_lu => sub { list_lun(@_) },
 );
-- 
2.47.3