[PATCH STABLE] revlog: fix bad indentation (replace tab by space)

[Martin von Zweigbergk]

# HG changeset patch
# User Martin von Zweigbergk <martinvonz at google.com>
# Date 1450500881 28800
#      Fri Dec 18 20:54:41 2015 -0800
# Branch stable
# Node ID e47841c8343d06b91637c84866bf1469b835b1f7
# Parent  e240e914d2261788c3ba700401659c11ed820fe3
revlog: fix bad indentation (replace tab by space)

diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -1438,7 +1438,7 @@
         # We work around this issue by inserting a seek() before writing.
         # Note: This is likely not necessary on Python 3.
         ifh.seek(0, os.SEEK_END)
-	 if dfh:
+        if dfh:
             dfh.seek(0, os.SEEK_END)
 
         curr = len(self) - 1