Remove trailing whitespace.
diff --git a/Doc/library/imgfile.rst b/Doc/library/imgfile.rst
index 9785453..84ede95 100644
--- a/Doc/library/imgfile.rst
+++ b/Doc/library/imgfile.rst
@@ -6,7 +6,7 @@
    :platform: IRIX
    :synopsis: Support for SGI imglib files.
    :deprecated:
-   
+
 .. deprecated:: 2.6
    The :mod:`imgfile` module has been deprecated for removal in Python 3.0.