[m-rev.] diff: shift a NEW entry

[Julien Fischer]

Shift a NEWS entry.

NEWS.md:
     Shift the announcement of the documentation fixes in the term_io
     module to the 22.01.6 section (since the fixes themselves have been
     merged on to the 22.01 branch).

Julien.

diff --git a/NEWS.md b/NEWS.md
index 1d4c424..84303f2 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -915,17 +915,6 @@ Changes to the Mercury standard library
      - pred `read_term_with_op_table/5`
              (replacement: `mercury_term_parser.read_term_with_op_table/5`)

-* The documentation of the predicates has been fixed:
-
-    - pred `quote_char/3`
-    - pred `quote_atom/3`
-    - pred `write_escaped_char/3`
-    - pred `write_escaped_string/3`
-
-  Their documentation said that they write to `stdout`, when in fact
-  they write to the current text output stream. By default, this is `stdout`,
-  but calls to `io.set_output_stream` may change this.
-
  ### New `term_subst` module

  * This new module contains predicates that perform substitutions
@@ -1164,6 +1153,18 @@ This is a bug-fix release.
    fail when compiling a program that consists of a single source file and
    some of the required libraries are not available in the selected grade.

+* The documentation of the following predicates in the `term_io` module has
+  been fixed:
+
+    - pred `quote_char/3`
+    - pred `quote_atom/3`
+    - pred `write_escaped_char/3`
+    - pred `write_escaped_string/3`
+
+  Their documentation said that they write to `stdout`, when in fact
+  they write to the current text output stream. By default, this is `stdout`,
+  but calls to `io.set_output_stream` may change this.
+
  NEWS for Mercury 22.01.5
  ========================