Make Zeal->sets die if given family does not exist

diff --git a/lib/Zeal.pm b/lib/Zeal.pm
index c2ed5d7bcf8207aef0dbb6e173e5269fa7e2943a..5fd8d5a4c706bf5f03cf6212bf391cef14f01200 100644 (file)
--- a/lib/Zeal.pm
+++ b/lib/Zeal.pm
@@ -41,6 +41,7 @@ sub add {
 sub sets {
        my ($self, $family) = @_;
        return map { @$_ } values %{$self->{sets}} unless $family;
+       die "No docsets in family '$family'\n" unless $self->{sets}{$family};
        @{$self->{sets}{$family}}
 }