dh: rules function joins array argument

Appending @_ to a string appends the array length rather than
the array contents, so join with separating whitespace.

1 files changed, 1 insertions, 1 deletions

diff --git a/dh b/dh
index 2eda3353..8d8c920a 100755
--- a/dh
+++ b/dh
@@ -801,7 +801,7 @@ sub rules_target {
 }
 
 sub rules {
-	return "debian/rules ".@_;
+	return "debian/rules ".join(" ", @_);
 }
 
 {