[GRASS5] r.patch man page: suggestions

[Rich Shepard]

  The r.patch man page describes the program as "...using known category
values from one (or more) map layer(s) to fill in areas of 'no data' in
another map layer."

  However, I have learned that it also replaces data on one layer with data
from another layer, not just the null-valued cells. I had searched for
another module to do this, then decided to try r.patch. It works.

  Therefore, I suggest that the man page be adjusted to reflect this broader
capability.

Rich

Dr. Richard B. Shepard, President

                       Applied Ecosystem Services, Inc. (TM)
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