[Bug 1123057] New: warning: file /usr/bin/gofmt: remove failed: No such file or directory while removing golang packages

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1123057

Bug ID: 1123057
           Summary: warning: file /usr/bin/gofmt: remove failed: No such
                    file or directory while removing golang packages
           Product: Fedora
           Version: 20
         Component: golang
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail], [e-mail],
                    [e-mail], [e-mail], [e-mail]

Description of problem:

There are two warnings while removing golang-pkg-bin-linux-amd64 package:
warning: file /usr/bin/gofmt: remove failed: No such file or directory
warning: file /usr/bin/go: remove failed: No such file or directory

Version-Release number of selected component (if applicable):
1.2.2-7.fc20

How reproducible:
Always

Steps to Reproduce:
1. yum install golang
2. yum remove golang*

Actual Results:
# yum remove golang*
Loaded plugins: changelog, langpacks
Resolving Dependencies
--> Running transaction check
---> Package golang.x86_64 0:1.2.2-7.fc20 will be erased
---> Package golang-pkg-bin-linux-amd64.x86_64 0:1.2.2-7.fc20 will be erased
---> Package golang-pkg-linux-amd64.noarch 0:1.2.2-7.fc20 will be erased
---> Package golang-src.noarch 0:1.2.2-7.fc20 will be erased
--> Finished Dependency Resolution
[...]
Running transaction (shutdown inhibited)
  Erasing    : golang-pkg-linux-amd64-1.2.2-7.fc20.noarch                   1/4 
  Erasing    : golang-pkg-bin-linux-amd64-1.2.2-7.fc20.x86_64               2/4 
warning: file /usr/bin/gofmt: remove failed: No such file or directory
warning: file /usr/bin/go: remove failed: No such file or directory
  Erasing    : golang-1.2.2-7.fc20.x86_64                                   3/4 
  Erasing    : golang-src-1.2.2-7.fc20.noarch                               4/4 
  Verifying  : golang-src-1.2.2-7.fc20.noarch                               1/4 
  Verifying  : golang-1.2.2-7.fc20.x86_64                                   2/4 
  Verifying  : golang-pkg-bin-linux-amd64-1.2.2-7.fc20.x86_64               3/4 
  Verifying  : golang-pkg-linux-amd64-1.2.2-7.fc20.noarch                   4/4

Removed:
  golang.x86_64 0:1.2.2-7.fc20
  golang-pkg-bin-linux-amd64.x86_64 0:1.2.2-7.fc20
  golang-pkg-linux-amd64.noarch 0:1.2.2-7.fc20    
  golang-src.noarch 0:1.2.2-7.fc20

Expected Results:
no warning about missing files

Additional Information:
It looks like the links maintained by update-alternatives are not marked as
%ghost in the spec file:

[...]
ifarch x86_64
%files pkg-bin-linux-amd64
%{goroot}/bin/linux_amd64/
# binary executables
%{_bindir}/go
%{_bindir}/gofmt
[...]

This is required by the Alternatives guideline:
https://fedoraproject.org/wiki/Packaging:Alternatives .