### Please describe the problem.

`/usr/bin/git-annex-shell` is linked to `/usr/lib/git-annex.linux/git-annex`, not `/usr/lib/git-annex.linux/git-annex-shell` after installing from git annex standalone rpm using yum.

As a result, commands passed through `git-annex-shell` don't work, but other functions I tried work properly (e.g. initializing repos, adding files). I found the bug after running `git annex get myawesomefile` and getting a confusing error message about `git-annex` usage.

Running `/usr/lib/git-annex.linux/git-annex-shell configlist ~/path/to/my/repo` would produce correct output, but `/usr/bin/git-annex-shell configlist ~/path/to/my/repo` would raise errors. Relinking `/usr/bin/git-annex-shell` seems to have fixed the problem.


### What steps will reproduce the problem?

- Install git annex following these steps: https://git-annex.branchable.com/install/rpm_standalone/
- Run any `git-annex-shell` command. In my case, `git-annex-shell configlist ~/path/to/my/repo`.

### What version of git-annex are you using? On what operating system?

git-annex version: 7.20190912-g05bc37910
build flags: Assistant Webapp Pairing S3 WebDAV Inotify DBus DesktopNotify TorrentParser MagicMime Feeds Testsuite
dependency versions: aws-0.20 bloomfilter-2.0.1.0 cryptonite-0.25 DAV-1.3.3 feed-1.0.0.0 ghc-8.4.4 http-client-0.5.13.1 persistent-sqlite-2.8.2 torrent-10000.1.1 uuid-1.3.13 yesod-1.6.0
operating system: linux x86_64  (CentOS 7)

### Please provide any additional information below.

Here is output from one time I tried to run `git-annex-shell` over ssh. Note that the error message gives usage for `git-annex`, not `git-annex-shell`.

[[!format sh """
$ ssh username@my.remote.server 'git-annex-shell configlist ~/path/to/my/repo'
Invalid argument `configlist'

Usage: git-annex COMMAND
  git-annex - manage files with git, without checking their contents in
  
  Commonly used commands:
  
  add             PATH ...                  add files to annex
  addurl          URL ...                   add urls to annex
"""]]

### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)

Git annex does exactly what I want, without the complicated setup or fees of git lfs. Thanks for your work maintaining this project!

> [[fixed|done]] in git; the rpm itself will only get generated at the next
> release though. --[[Joey]]
