Include the info directory entry in the .info file so that we can install
it without making something up later.

--- krb5-1.3/doc/krb5-user.info
+++ krb5-1.3/doc/krb5-user.info
@@ -1,7 +1,8 @@
 This is krb5-user.info, produced by makeinfo version 4.0 from
 user-guide.texinfo.
-
-
+START-INFO-DIR-ENTRY
+* Krb5-User: (krb5-user).         Kerberos 5 User's Guide.
+END-INFO-DIR-ENTRY
 File: krb5-user.info,  Node: Top,  Next: Copyright,  Prev: (dir),  Up: (dir)
 
 This file describes how to use the Kerberos V5 client programs.
--- krb5-1.3/doc/krb425.info
+++ krb5-1.3/doc/krb425.info
@@ -1,6 +1,8 @@
 This is krb425.info, produced by makeinfo version 4.0 from
 krb425.texinfo.
-
+START-INFO-DIR-ENTRY
+* Krb425: (krb425).               Kerberos IV to Kerberos 5 Migration.
+END-INFO-DIR-ENTRY
 
 File: krb425.info,  Node: Top,  Next: Copyright,  Prev: (dir),  Up: (dir)
 
--- krb5-1.3/doc/krb5-admin.info
+++ krb5-1.3/doc/krb5-admin.info
@@ -1,6 +1,8 @@
 This is krb5-admin.info, produced by makeinfo version 4.0 from
 admin.texinfo.
-
+START-INFO-DIR-ENTRY
+* Krb5-Admin: (krb5-admin).       Kerberos 5 Administrator's Guide.
+END-INFO-DIR-ENTRY
 
 Indirect:
 krb5-admin.info-1: 79
--- krb5-1.3/doc/krb5-install.info
+++ krb5-1.3/doc/krb5-install.info
@@ -1,6 +1,8 @@
 This is krb5-install.info, produced by makeinfo version 4.0 from
 install.texinfo.
-
+START-INFO-DIR-ENTRY
+* Krb5-Install: (krb5-install).   Kerberos 5 Installation Guide.
+END-INFO-DIR-ENTRY
 
 Indirect:
 krb5-install.info-1: 83