convert/gnuarch: parse continuation-of revisions in gnuarch source In GNU Arch, continuation-of was often used for: - tagging revisions - continue working on a project in a new archive, because arch was scaling poorly in revision numbers (cat-logs were slow to be parsed and scanned through) - very similar to the previous point, fork his own branch of a project. Parsing this header information will allow to 'follow' new history because it often hints at older/forked/personal revision trees. This patch however just implements the parsing of the continuation-of header. A followup patch will implement the proper use of this new information.

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adding a

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adding b

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adding c

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adding d

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adding dir/bar/foo

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adding dir/x

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adding dir/y

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adding e

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% inserve

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? hg.pid

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% clean

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C a

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C b

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C c

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C d

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C dir/bar/foo

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C dir/x

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C dir/y

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C e

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% all

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? hg.pid

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C a

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C b

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C c

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C d

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C dir/bar/foo

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C dir/x

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C dir/y

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C e

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% path patterns

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M dir/x

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? hg.pid

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M dir/x

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M x