second, an --import-marks= command-line option overrides
any "feature import-marks" command in the stream.
+cat-blob::
+ Ignored. Versions of fast-import not supporting the
+ "cat-blob" command will exit with a message indicating so.
+ This lets the import error out early with a clear message,
+ rather than wasting time on the early part of an import
+ before the unsupported command is detected.
+
+ notes::
+ Require that the backend support the 'notemodify' (N)
+ subcommand to the 'commit' command.
+ Versions of fast-import not supporting notes will exit
+ with a message indicating so.
+
++
`option`
~~~~~~~~
Processes the specified option so that git fast-import behaves in a