remove indentation in doc string

loopy/transform/iname.py

@@ -2508,12 +2508,12 @@ def rename_iname(kernel, old_iname, new_iname, existing_ok=False,
                  raise_on_domain_mismatch: bool = __debug__):
     r"""
     Single iname version of :func:`loopy.rename_inames`.
-    :arg existing_ok: execute even if *new_iname* already exists
+    :arg existing_ok: execute even if *new_iname* already exists.
     :arg within: a stack match understood by :func:`loopy.match.parse_stack_match`.
-    :arg preserve_tags: copy the tags on the old iname to the new iname
+    :arg preserve_tags: copy the tags on the old iname to the new iname.
     :arg raise_on_domain_mismatch: If *True*, raises an error if
-        :math:`\exists (i_1,i_2) \in \{\text{old\_inames}\}^2 |
-        \mathcal{D}_{i_1} \neq \mathcal{D}_{i_2}`.
+    :math:`\exists (i_1,i_2) \in \{\text{old\_inames}\}^2 |
+    \mathcal{D}_{i_1} \neq \mathcal{D}_{i_2}`.
     """
     from itertools import product
     from loopy import tag_inames