rbd: indentation and whitespace cleanups

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

PVE/Storage/RBDPlugin.pm

@@ -723,7 +723,6 @@ sub volume_snapshot_delete {
 }
 
 sub volume_snapshot_needs_fsfreeze {
-
     return 1;
 }
 
@@ -738,8 +737,7 @@ sub volume_has_feature {
 	sparseinit => { base => 1, current => 1},
     };
 
-    my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
-        $class->parse_volname($volname);
+    my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = $class->parse_volname($volname);
 
     my $key = undef;
     if ($snapname){