Merge branch 'u/chapoton/14444' into 7.3.b3

sagemath · Jun 10, 2016 · d89f4a4 · d89f4a4
2 parents 715566f + c364003
commit d89f4a4
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diff --git a/src/sage/combinat/cluster_algebra_quiver/mutation_type.py b/src/sage/combinat/cluster_algebra_quiver/mutation_type.py
@@ -281,7 +281,7 @@ def _check_special_BC_cases(dg, n, check_letter_list, check_twist_list,
         if not mut_type == 'unknown':
             mut_type, conn_verts = mut_type
     else:
-        # when conn_vert_list == False, the output of _connected_mutation_type _AAtildeD is simply 'unknown' or the mutation type.
+        # when conn_vert_list is False, the output of _connected_mutation_type _AAtildeD is simply 'unknown' or the mutation type.
         # no 'connecting vertices' need to be computed.
         mut_type = _connected_mutation_type_AAtildeD( dg, ret_conn_vert = False )
         conn_verts = []