rssg: fix date variable

it seems that i forgot to specify it before

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/rssg b/bin/rssg
index e150bea..b8dda3f 100755
--- a/bin/rssg
+++ b/bin/rssg
@@ -194,7 +194,7 @@ render_feed() {
 <title>'"$title"'</title>
 <description>'"$description"'</description>
 <link>'"$base_url"'/</link>
-<lastBuildDate>'"$(date_rfc_822 date)"'</lastBuildDate>
+<lastBuildDate>'"$(date_rfc_822 $date)"'</lastBuildDate>
 '"$(cat)"'
 </channel></rss>'
 }