Bug #1629125: fix wrong data type (int -> Py_ssize_t) in PyDict_Next docs.
(backport from rev. 53477)
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index 97ef134..e1f3e9a 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -2082,7 +2082,7 @@
\begin{verbatim}
PyObject *key, *value;
-int pos = 0;
+Py_ssize_t pos = 0;
while (PyDict_Next(self->dict, &pos, &key, &value)) {
/* do something interesting with the values... */
@@ -2097,7 +2097,7 @@
\begin{verbatim}
PyObject *key, *value;
-int pos = 0;
+Py_ssize_t pos = 0;
while (PyDict_Next(self->dict, &pos, &key, &value)) {
int i = PyInt_AS_LONG(value) + 1;