f6435a0 meson: do not fail if rsync is not installed with meson 0.57.2

Authored and Committed by zbyszek 2 years ago
    meson: do not fail if rsync is not installed with meson 0.57.2
    
    https://github.com/mesonbuild/meson/issues/8641
    
    Our CI started to fail. Even if the change is reverted in meson,
    we need a quick workaround here.
    
    (cherry picked from commit 7c5fd25119a495009ea62f79e5daec34cc464628)
    
        
file modified
+14 -11