code: plan9front

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git/pack: check pf->pack for nil before Bterming it

--- a/sys/src/cmd/git/pack.c

+++ b/sys/src/cmd/git/pack.c

@@ -281,7 +281,7 @@

 static void

 closepack(Packf *pf)

 {

-	if(--pf->refs == 0){

+	if(--pf->refs == 0 && pf->pack != nil){

 		Bterm(pf->pack);

 		pf->pack = nil;

 	}