move todos to project roottodo

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diff --git a/Installpkg flags.md b/Installpkg flags.md
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+Add support for the following installpkg flags:
+
+```
+--warn (warn if files will be overwritten, but do not install)
+--md5sum (record the package's md5sum in the metadata file)
+--no-overwrite When extracting the package, do not overwrite
+  existing files. Usually, this option should not be used.
+  It exists so that upgradepkg can use it for the second
+  installation pass. The first pass has already overwritten
+  the previous package's files, and this will catch the few
+  corner cases without generating unnecessary writes.
+```