[Chicken-janitors] #1568: graph-bfs: srfi-13 is required for tests

[Chicken Trac]

#1568: graph-bfs: srfi-13 is required for tests
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 Reporter:  mario       |                 Owner:  iraikov
     Type:  defect      |                Status:  new
 Priority:  minor       |             Milestone:  someday
Component:  extensions  |               Version:  5.0.0
 Keywords:  graph-bfs   |  Estimated difficulty:
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 See http://salmonella-linux-x86.call-cc.org/master-
 debugbuild/gcc/linux/x86/2018/12/14/salmonella-report/test/graph-bfs.html

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Ticket URL: <https://bugs.call-cc.org/ticket/1568>
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