Update to 9.7.3 + minor fixes.
    
    - fix dig +trace on dualstack systems (#674334)
    - fix linkage order when building on system with older BIND (#665971)
    - reduce number of gcc warnings
    
    Signed-off-by: Adam Tkac <atkac@redhat.com>
    
    Conflicts:
    
    	.gitignore
    	bind.spec
    	sources