Also print out the text description of the gunzip error.
Also print out the text description of the gunzip error.

ssm/pkg-varnish,alarky/varnish-cache-doc-ja,wikimedia/operations-debs-varnish,mrhmouse/Varnish-Cache,gquintard/Varnish-Cache,alarky/varnish-cache-doc-ja,1HLtd/Varnish-Cache,zhoualbeart/Varnish-Cache,feld/Varnish-Cache,gauthier-delacroix/Varnish-Cache,drwilco/varnish-cache-drwilco,drwilco/varnish-cache-old,gauthier-delacroix/Varnish-Cache,gauthier-delacroix/Varnish-Cache,chrismoulton/Varnish-Cache,gauthier-delacroix/Varnish-Cache,gquintard/Varnish-Cache,chrismoulton/Varnish-Cache,varnish/Varnish-Cache,wikimedia/operations-debs-varnish,franciscovg/Varnish-Cache,franciscovg/Varnish-Cache,wikimedia/operations-debs-varnish,zhoualbeart/Varnish-Cache,1HLtd/Varnish-Cache,gquintard/Varnish-Cache,drwilco/varnish-cache-old,1HLtd/Varnish-Cache,ssm/pkg-varnish,ambernetas/varnish-cache,ajasty-cavium/Varnish-Cache,feld/Varnish-Cache,ssm/pkg-varnish,franciscovg/Varnish-Cache,varnish/Varnish-Cache,zhoualbeart/Varnish-Cache,gauthier-delacroix/Varnish-Cache,chrismoulton/Varnish-Cache,ssm/pkg-varnish,ambernetas/varnish-cache,ajasty-cavium/Varnish-Cache,chrismoulton/Varnish-Cache,feld/Varnish-Cache,varnish/Varnish-Cache,mrhmouse/Varnish-Cache,feld/Varnish-Cache,ajasty-cavium/Varnish-Cache,varnish/Varnish-Cache,alarky/varnish-cache-doc-ja,drwilco/varnish-cache-old,varnish/Varnish-Cache,zhoualbeart/Varnish-Cache,wikimedia/operations-debs-varnish,1HLtd/Varnish-Cache,wikimedia/operations-debs-varnish,chrismoulton/Varnish-Cache,alarky/varnish-cache-doc-ja,franciscovg/Varnish-Cache,ajasty-cavium/Varnish-Cache,alarky/varnish-cache-doc-ja,mrhmouse/Varnish-Cache,drwilco/varnish-cache-drwilco,mrhmouse/Varnish-Cache,zhoualbeart/Varnish-Cache,mrhmouse/Varnish-Cache,ajasty-cavium/Varnish-Cache,feld/Varnish-Cache,ssm/pkg-varnish,ambernetas/varnish-cache,drwilco/varnish-cache-drwilco,franciscovg/Varnish-Cache,gquintard/Varnish-Cache