gh-39536: Fix a nonfunctional long time doctest tag
    
As in the title.


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URL: #39536
Reported by: user202729
Reviewer(s): David Coudert

Author: Release Manager

src/sage/modular/btquotients/pautomorphicform.py

@@ -2497,7 +2497,7 @@ def _make_invariant(self, F):
             sage: H = X.harmonic_cocycles(2,prec = 5)
             sage: A = X.padic_automorphic_forms(2,prec = 5)
             sage: h = H.basis()[0]
-            sage: A.lift(h) # indirect doctest long time
+            sage: A.lift(h)  # indirect doctest, long time
             p-adic automorphic form of cohomological weight 0
         """
         S = self._source.get_stabilizers()