Completar la traducción de c-api/refcounting.po

Cierra #3800.

Author: artur282

c-api/refcounting.po

@@ -64,13 +64,17 @@ msgid ""
 "isn't sufficient to determine if it's safe to treat *o* as having no access "
 "by other threads. Use :c:func:`PyUnstable_Object_IsUniquelyReferenced` for "
 "that instead."
-msgstr ""
+msgstr "En las compilaciones :term:`con hilos libres <free threading>` de "
+"Python, retornar 1 no es suficiente para determinar si es seguro tratar a *o*"
+" como si no tuviera acceso por parte de otros hilos. Usa "
+":c:func:`PyUnstable_Object_IsUniquelyReferenced` para eso."
 
 #: ../Doc/c-api/refcounting.rst:33
 msgid ""
 "See also the function :c:func:"
 "`PyUnstable_Object_IsUniqueReferencedTemporary()`."
-msgstr ""
+msgstr "Véase también la función "
+":c:func:`PyUnstable_Object_IsUniqueReferencedTemporary()`."
 
 #: ../Doc/c-api/refcounting.rst:35
 msgid ":c:func:`Py_REFCNT()` is changed to the inline static function."
@@ -368,7 +372,6 @@ msgid "Py_SETREF(dst, src);"
 msgstr "Py_SETREF(dst, src);"
 
 #: ../Doc/c-api/refcounting.rst:213
-#, fuzzy
 msgid ""
 "That arranges to set *dst* to *src* *before* releasing the reference to the "
 "old value of *dst*, so that any code triggered as a side-effect of *dst* "