From e9b8e12a7e7d75c5f6b17af1ab528d3be8128771 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 25 Jul 2020 17:15:55 +0100
Subject: [PATCH] nailing-cargo: oot_massage_cmdline: Initialise $pre and $post

Otherwise if we don't write anything to them, we produce an undef
warning.

No functional change with current code.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 nailing-cargo | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nailing-cargo b/nailing-cargo
index cef0808..8eb65ec 100755
--- a/nailing-cargo
+++ b/nailing-cargo
@@ -500,7 +500,7 @@ sub oot_massage_cmdline () {
   $use // die "$self: out-of-tree build, but \`oot.use' not configured\n";
   $build_absdir = "$oot_absdir/$subdir";
 
-  my ($pre,$post);
+  my ($pre,$post) = ('','');
   my @xargs;
   if (!$cargo_lock_update) {
     push @xargs, $build_absdir;
-- 
2.30.2