is your /usr/share/info/dir in perfect shape?

[Dan Jacobson <jidanni@jidanni.org>]

Gentlemen, the Info dir on my system is not in tip top shape, and may
not be also on yours.  Try this simple test for duplicate entries:
$ sort /usr/share/info/dir|uniq -d|fgrep \*
* patch: (diff)Invoking patch.			     Apply a patch to a file.
* sdiff: (diff)Invoking sdiff.			     Merge 2 files
* testsuite: (autoconf)testsuite Invocation.	     Running an Autotest test

So some packages are using install-info imperfectly.

Maybe instead of relying on perfect use of install-info by each
package, perhaps just remaking /usr/share/info/dir from whatever info
files are on the system might be less error prone?

$ sed -n 's/:.*//p' dir|sort|uniq -d
* Gnus
* Info
* Message
* patch
* sdiff
* testsuite
* true
* tty
* uname
* users
* who
* whoami
* yes

for me reveals that I need to do
$ install-info --remove /usr/share/info/sh-utils.info
as apparently that wasn't done when those tools were moved to a
different package.  Same with fileutils...