[m-rev.] diff: fix record syntax documentation

[Simon Taylor]

Estimated hours taken: 0.2
Branches: main, release

doc/reference_manual.texi:
	Fix bugs in the transformation and examples for field update.

Index: reference_manual.texi
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RCS file: /home/mercury1/repository/mercury/doc/reference_manual.texi,v
retrieving revision 1.214
diff -u -u -r1.214 reference_manual.texi
--- reference_manual.texi	2001/07/31 18:02:11	1.214
+++ reference_manual.texi	2001/08/17 03:51:45
@@ -1010,7 +1010,7 @@
 transform(Term0 ^ Field(Arg1, @dots{}) ^ Rest := FieldValue) = Term :-
         OldFieldValue = Field(Arg1, @dots{}, Term0),
         NewFieldValue = transform(OldFieldValue ^ Rest := FieldValue),
-        Term = 'Field :='(Arg1, @dots{}, Term, NewFieldValue).
+        Term = 'Field :='(Arg1, @dots{}, Term0, NewFieldValue).
 @end example
 
 Examples:
@@ -1026,7 +1026,7 @@
 @example
 OldField1 = field1(Arg1, Term),
 NewField1 = 'field2 :='(Arg2, OldField1, FieldValue),
-Result = 'field1 :='(Arg1, OldField1, NewField1)
+Result = 'field1 :='(Arg1, Term, NewField1)
 @end example
 
 @end table
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