Fix #1122: wrong return type documented for various _Size() functions.
(backport from rev. 58115).
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index ec3d84a..3ffcf5a 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -1753,12 +1753,12 @@
\versionadded{2.4}
\end{cfuncdesc}
-\begin{cfuncdesc}{int}{PyTuple_Size}{PyObject *p}
+\begin{cfuncdesc}{Py_ssize_t}{PyTuple_Size}{PyObject *p}
Take a pointer to a tuple object, and return the size of that
tuple.
\end{cfuncdesc}
-\begin{cfuncdesc}{int}{PyTuple_GET_SIZE}{PyObject *p}
+\begin{cfuncdesc}{Py_ssize_t}{PyTuple_GET_SIZE}{PyObject *p}
Return the size of the tuple \var{p}, which must be non-\NULL{} and
point to a tuple; no error checking is performed.
\end{cfuncdesc}
@@ -3148,7 +3148,7 @@
The following functions and macros are available for instances of
\class{set} or \class{frozenset} or instances of their subtypes.
-\begin{cfuncdesc}{int}{PySet_Size}{PyObject *anyset}
+\begin{cfuncdesc}{Py_ssize_t}{PySet_Size}{PyObject *anyset}
Return the length of a \class{set} or \class{frozenset} object.
Equivalent to \samp{len(\var{anyset})}. Raises a
\exception{PyExc_SystemError} if \var{anyset} is not a \class{set},
@@ -3156,7 +3156,7 @@
\bifuncindex{len}
\end{cfuncdesc}
-\begin{cfuncdesc}{int}{PySet_GET_SIZE}{PyObject *anyset}
+\begin{cfuncdesc}{Py_ssize_t}{PySet_GET_SIZE}{PyObject *anyset}
Macro form of \cfunction{PySet_Size()} without error checking.
\end{cfuncdesc}