Switch back to 1.42.9 now that there is a fix

Revert "Revert changes that moved from 1.41.14 to 1.42.9"

This reverts commit 65f0aab98b20b5994a726ab90d355248bcddfffd.
diff --git a/debian/comerr-dev.doc-base b/debian/comerr-dev.doc-base
index ccde954..463eb76 100644
--- a/debian/comerr-dev.doc-base
+++ b/debian/comerr-dev.doc-base
@@ -8,5 +8,5 @@
 Section: Programming
 
 Format: HTML
-Index: /usr/share/doc/comerr-dev/html-info/com_err_toc.html
+Index: /usr/share/doc/comerr-dev/html-info/com_err.html
 Files: /usr/share/doc/comerr-dev/html-info/*.html