Issue #25179: Preparatory cleanup of existing docs on string formatting

* Various sections were pointing to the section on the string.Formatter
  class, when the section on the common format string syntax is probably more
  appropriate
* Fix references to various format() functions and methods
* Nested replacement fields may contain conversions and format specifiers,
  and this is tested; see Issue #19729 for instance

1 files changed, 1 insertions, 1 deletions

diff --git a/Doc/faq/programming.rst b/Doc/faq/programming.rst
index 94b428d..9fba9fe 100644
--- a/Doc/faq/programming.rst
+++ b/Doc/faq/programming.rst
@@ -839,7 +839,7 @@ How do I convert a number to a string?
 To convert, e.g., the number 144 to the string '144', use the built-in type
 constructor :func:`str`.  If you want a hexadecimal or octal representation, use
 the built-in functions :func:`hex` or :func:`oct`.  For fancy formatting, see
-the :ref:`string-formatting` section, e.g. ``"{:04d}".format(144)`` yields
+the :ref:`formatstrings` section, e.g. ``"{:04d}".format(144)`` yields
 ``'0144'`` and ``"{:.3f}".format(1.0/3.0)`` yields ``'0.333'``.