Move old ChangeLog files to new `docs/oldlogs` directory.
diff --git a/ChangeLog.20 b/docs/oldlogs/ChangeLog.20
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rename to docs/oldlogs/ChangeLog.20
diff --git a/ChangeLog.21 b/docs/oldlogs/ChangeLog.21
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rename to docs/oldlogs/ChangeLog.21
diff --git a/ChangeLog.22 b/docs/oldlogs/ChangeLog.22
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rename to docs/oldlogs/ChangeLog.22
diff --git a/ChangeLog.23 b/docs/oldlogs/ChangeLog.23
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rename to docs/oldlogs/ChangeLog.23
diff --git a/ChangeLog.24 b/docs/oldlogs/ChangeLog.24
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rename to docs/oldlogs/ChangeLog.24
diff --git a/ChangeLog.25 b/docs/oldlogs/ChangeLog.25
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rename to docs/oldlogs/ChangeLog.25
diff --git a/ChangeLog.26 b/docs/oldlogs/ChangeLog.26
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rename to docs/oldlogs/ChangeLog.26
diff --git a/ChangeLog.27 b/docs/oldlogs/ChangeLog.27
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rename to docs/oldlogs/ChangeLog.27
diff --git a/ChangeLog.28 b/docs/oldlogs/ChangeLog.28
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rename from ChangeLog.28
rename to docs/oldlogs/ChangeLog.28
diff --git a/ChangeLog.29 b/docs/oldlogs/ChangeLog.29
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rename from ChangeLog.29
rename to docs/oldlogs/ChangeLog.29