28b610 Restore execute permission to get_sources.sh

Authored and Committed by Isaac Pittman 2 years ago
    Restore execute permission to get_sources.sh
    
    In [04de77](https://git.centos.org/centos-git-common/c/04de770) the
    execute permission was removed from `get_sources.sh`, which causes
    `into_srpm.sh` to fail with the following error:
    ```
    You need get_sources.sh from centos-git-common in PATH
    ```
    
    This fix restore the execute permission.
    
        
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