revlog: preindent some code in addgroup

Indenting this beforehand will make a future changeset much simpler.

Differential Revision: https://phab.mercurial-scm.org/D10603

mercurial/revlog.py

@@ -2442,10 +2442,20 b' class revlog(object):'
         empty = True
 
         try:
+            if True:
             deltacomputer = deltautil.deltacomputer(self)
             # loop through our set of deltas
             for data in deltas:
-                node, p1, p2, linknode, deltabase, delta, flags, sidedata = data
+                    (
+                        node,
+                        p1,
+                        p2,
+                        linknode,
+                        deltabase,
+                        delta,
+                        flags,
+                        sidedata,
+                    ) = data
                 link = linkmapper(linknode)
                 flags = flags or REVIDX_DEFAULT_FLAGS
 
@@ -2477,7 +2487,9 b' class revlog(object):'
                     hlen = struct.calcsize(b">lll")
                     oldlen = self.rawsize(baserev)
                     newlen = len(delta) - hlen
-                    if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen):
+                        if delta[:hlen] != mdiff.replacediffheader(
+                            oldlen, newlen
+                        ):
                         raise error.CensoredBaseError(
                             self.display_id, self.node(baserev)
                         )