Document the "jump" command in pdb.__doc__, and add a version tag for "until X".
diff --git a/Doc/library/pdb.rst b/Doc/library/pdb.rst
index 7f44c08..4e79bad 100644
--- a/Doc/library/pdb.rst
+++ b/Doc/library/pdb.rst
@@ -339,6 +339,9 @@
    equal to that is reached.  In both cases, also stop when the current frame
    returns.
 
+   .. versionchanged:: 3.2
+      Allow giving an explicit line number.
+
 .. pdbcommand:: r(eturn)
 
    Continue execution until the current function returns.