LaTeX: restore 1.7 documentation of literalblockcappos (#14224)

CHANGES.rst

@@ -44,6 +44,9 @@ Bugs fixed
   Patch by Jean-François B.
 * #14089: autodoc: Improve support for non-weakreferencable objects.
   Patch by Adam Turner
+* LaTeX: fix accidental removal at ``3.5.0`` (#8854) of the documentation of
+  ``literalblockcappos`` key of  :ref:`'sphinxsetup' <latexsphinxsetup>`.
+  Patch by Jean-François B.
 
 Testing
 -------

doc/latex.rst

@@ -727,6 +727,13 @@ The color used in the above example is available from having passed the
 
     .. versionadded:: 8.1.0
 
+``literalblockcappos``
+    Decides the caption position: either ``b`` ("bottom") or ``t`` ("top").
+
+    Default: ``t``
+
+    .. versionadded:: 1.7
+
 ``verbatimwithframe``
     Boolean to specify if :rst:dir:`code-block`\ s and literal includes are
     framed. Setting it to ``false`` does not deactivate use of package

sphinx/texinputs/sphinxlatexliterals.sty

@@ -718,9 +718,8 @@
 %
 % For matters of 9.1.0 LongVerbatim, we extract from original Verbatim various
 % pieces.  Also, @Before and @After assignments are made global, to support an
-% optional bottom caption (btw, it seems this is not documented at user
-% level?!) position also with LongVerbatim and one needs to always set them, as
-% they are not undone anymore at end of scope.
+% optional bottom caption position also with LongVerbatim, and one needs to
+% always set them, as they are not undone anymore at end of scope.
 \def\sphinxverbatim@preparetitle@none{%
       \sphinxvspacefixafterfrenchlists
       \parskip\z@skip