Dgit.pm: printdebug: Strip empty strings from @_ and maybe quit early

Now the meat of the function always has nonempty $_[-1].

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index c8a6faf..3d517e1 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -161,6 +161,8 @@ sub enabledebuglevel ($) {
 sub printdebug {
     return unless $debuglevel >= $printdebug_when_debuglevel;
     print DEBUG $debugprefix;
+    pop @_ while @_ and !length $_[-1];
+    return unless @_;
     print DEBUG @_ or die $!;
 }