plugin: move 'parse_snap_name' up to before its use

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/PVE/Storage/Plugin.pm

@@ -708,6 +708,14 @@ sub cluster_lock_storage {
     return $res;
 }
 
+my sub parse_snap_name {
+    my ($name) = @_;
+
+    if ($name =~ m/^snap-(.*)-vm(.*)$/) {
+        return $1;
+    }
+}
+
 sub parse_name_dir {
     my $name = shift;
 
@@ -800,14 +808,6 @@ my sub get_snap_name {
     return $name;
 }
 
-my sub parse_snap_name {
-    my ($name) = @_;
-
-    if ($name =~ m/^snap-(.*)-vm(.*)$/) {
-        return $1;
-    }
-}
-
 sub filesystem_path {
     my ($class, $scfg, $volname, $snapname) = @_;