Add hint of Issue #478 to error text

Duncan Betts · Duncan Betts · commit 438911f90393 · 2016-11-26T10:14:01.000Z
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -21,6 +21,7 @@
 
 .. _@DuncanBetts: https://github.com/DuncanBetts
 .. _@adler-j: https://github.com/adler-j
+.. _@DuncanBetts: https://github.com/DuncanBetts
 .. _@nedbat: https://github.com/nedbat
 
 .. _#478: https://github.com/pytest-dev/pytest/issues/478
