X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=Debian%2FDgit.pm;h=112d15bb64e2c8fbc1e64f6aba4e0569f1718176;hb=8c58335913e7ec0465a939a9a277e7fbd0df68e0;hp=e2a503d73eee9e5ae89f12b32d27e659963e426a;hpb=41d1bd6a6c194f11f906e1140861e976fac3f4e0;p=dgit.git

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index e2a503d7..112d15bb 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -93,8 +93,12 @@ sub enabledebug () {
 }
     
 sub enabledebuglevel ($) {
+    my ($newlevel) = @_; # may be undef (eg from env var)
     die if $debuglevel;
-    ($debuglevel) = @_ + 0;
+    $newlevel //= 0;
+    $newlevel += 0;
+    return unless $newlevel;
+    $debuglevel = $newlevel;
     enabledebug();
 }
     
@@ -107,7 +111,7 @@ sub shellquote {
     local $_;
     foreach my $a (@_) {
 	$_ = $a;
-	if (m{[^-=_./0-9a-z]}i) {
+	if (!length || m{[^-=_./0-9a-z]}i) {
 	    s{['\\]}{'\\$&'}g;
 	    push @out, "'$_'";
 	} else {