src/sage/rings: sage -fixdoctests --only-tags

Author: Matthias Koeppe

src/sage/rings/finite_rings/finite_field_pari_ffelt.py

@@ -213,11 +213,11 @@ def _pari_frobenius(self, k=1):
         TESTS::
 
             sage: F = FiniteField(37^10, 'a', impl='pari_ffelt')
-            sage: x = F.random_element()                                                # optional - sage.modules
-            sage: all(x**(37**k) == F(F._pari_frobenius(k).ffmap(x))                    # optional - sage.modules
+            sage: x = F.random_element()                                                # needs sage.modules
+            sage: all(x**(37**k) == F(F._pari_frobenius(k).ffmap(x))                    # needs sage.modules
             ....:     for k in range(1, 30) if k % 10 != 0)
             True
-            sage: F(F._pari_frobenius(-1).ffmap(x))**37 == x                            # optional - sage.modules
+            sage: F(F._pari_frobenius(-1).ffmap(x))**37 == x                            # needs sage.modules
             True
         """
         k = k % self.degree()