Changed to use "wc -c" to ensure the command works on both Linux and Mac OS X with a single implementation

hack/verify-file-sizes.sh

@@ -24,22 +24,6 @@ cd "${KUBE_ROOT}"
 # Files larger than 1MB need to be allowed explicitly.
 maxsize=$((1 * 1024 * 1024))
 
-run_stat() {
-    local file="$1"
-    case "$(uname -s)" in
-        Darwin)
-            stat -f %z "$file" | tr -d '\n'
-            ;;
-        Linux)
-            stat --printf=%s "$file"
-            ;;
-        *)
-            kube::log::error "Unsupported host OS.  Must be Linux or Mac OS X."
-            exit 1
-            ;;
-    esac
-}
-
 # Sorted list of those exceptions.
 allowlist=(
     staging/src/k8s.io/kubectl/images/kubectl-logo-full.png
@@ -58,7 +42,7 @@ largefiles () {
         case "$tree" in
             w/-text)
                 # Only binary files have a size limit.
-                size="$(run_stat "$file")"
+                size="$(wc -c < "$file")"
                 if [ "${size}" -gt "$maxsize" ] &&
                        ! kube::util::array_contains "$file" "${allowlist[@]}"; then
                     echo    "$file is too large ($size bytes)"