bpo-40956: fix Cursor.fetchmany() default value

Author: Erlend E. Aasland

Modules/_sqlite/clinic/cursor.c.h

@@ -138,7 +138,7 @@ pysqlite_cursor_fetchone(pysqlite_Cursor *self, PyObject *Py_UNUSED(ignored))
 }
 
 PyDoc_STRVAR(pysqlite_cursor_fetchmany__doc__,
-"fetchmany($self, /, size=cursor.arraysize)\n"
+"fetchmany($self, /, size=<unrepresentable>)\n"
 "--\n"
 "\n"
 "Fetches several rows from the resultset.");
@@ -256,4 +256,4 @@ pysqlite_cursor_close(pysqlite_Cursor *self, PyObject *Py_UNUSED(ignored))
 {
     return pysqlite_cursor_close_impl(self);
 }
-/*[clinic end generated code: output=11db0de4fb1951a9 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=8b5ffd9029d33cd8 input=a9049054013a1b77]*/

Modules/_sqlite/cursor.c

@@ -822,14 +822,14 @@ pysqlite_cursor_fetchone_impl(pysqlite_Cursor *self)
 /*[clinic input]
 _sqlite3.Cursor.fetchmany as pysqlite_cursor_fetchmany
 
-    size as maxrows: int(c_default='self->arraysize') = cursor.arraysize
+    size as maxrows: int(c_default='self->arraysize', py_default='<unrepresentable>') = 1
 
 Fetches several rows from the resultset.
 [clinic start generated code]*/
 
 static PyObject *
 pysqlite_cursor_fetchmany_impl(pysqlite_Cursor *self, int maxrows)
-/*[clinic end generated code: output=a8ef31fea64d0906 input=d80ff999a7701ffb]*/
+/*[clinic end generated code: output=a8ef31fea64d0906 input=e436f4f150e78b9b]*/
 {
     PyObject* row;
     PyObject* list;