Update src/sage/rings/function_field/drinfeld_modules/drinfeld_module.py

Co-authored-by: Antoine Leudière <[email protected]>

Author: xcaruso

src/sage/rings/function_field/drinfeld_modules/drinfeld_module.py

@@ -1708,7 +1708,7 @@ def hom(self, x, codomain=None):
         module as domain.
 
         We recall that a homomorphism `f : \phi \to \psi` between
-        two Drinfeld modules is defined by a Ore polynomial `u`,
+        two Drinfeld modules is defined by an Ore polynomial `u`,
         which is subject to the relation `phi_T u = u \psi_T`.
 
         INPUT: