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I will butt out here.

$ man diff
$ man patch

If you want your contributions to be reflected, lower the marginal cost of
getting them applied.  A clean patch against current sources (i.e. R-devel)
is surely better than a mere bug report with a suggestion.

Dirk

The relationship between the computed price and reality is as yet unknown.  
                                             -- From the pac(8) manual page