Merge pull request kubernetes#75668 from bart0sh/PR0068-hack-lib-golang.sh-fix-mac-build

fix 'make generated_files' build on MacOS

Author: k8s-ci-robot

hack/lib/golang.sh

@@ -718,7 +718,7 @@ kube::golang::build_binaries() {
       platforms=("${host_platform}")
     fi
 
-    local binaries
+    local -a binaries
     while IFS="" read -r binary; do binaries+=("$binary"); done < <(kube::golang::binaries_from_targets "${targets[@]}")
 
     local parallel=false