ecc8507 macros: Use %{build_rustflags} convention

Authored and Committed by ignatenkobrain 5 years ago
    macros: Use %{build_rustflags} convention
    
    But keep %__global_rustflags around for compatibility.
    
    Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
    
        
file modified
+4 -2