bug#6493:

[Deniz Dogan <deniz.a.m.dogan@gmail.com>]

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How about this? (See attached patch.)

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=== modified file 'src/editfns.c'
--- src/editfns.c	2010-06-16 20:08:41 +0000
+++ src/editfns.c	2010-06-27 12:22:00 +0000
@@ -349,14 +349,18 @@
 }
 
 DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0,
-       doc: /* Return position of beginning of region, as an integer.  */)
+       doc: /* Return position of beginning of region, as an integer.
+
+The beginning of the region is point or mark, whichever is smaller.  */)
      ()
 {
   return region_limit (1);
 }
 
 DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0,
-       doc: /* Return position of end of region, as an integer.  */)
+       doc: /* Return position of end of region, as an integer.
+
+The end of the region is point or mark, whichever is larger.  */)
      ()
 {
   return region_limit (0);