fix typo

Author: humbletim

vulkan_prebuilt_helpers.sh

@@ -62,7 +62,7 @@ function install_mac() {
     exit 7
   fi
   local sdk_tmp=$VULKAN_SDK.tmp
-  sudo InstallVulkan-${VULKAN_SDK_VERSION}.app/ContentsContents/MacOS/InstallVulkan-${VULKAN_SDK_VERSION} --root "$sdk_temp" --accept-licenses --default-answer --confirm-command install
+  sudo InstallVulkan-${VULKAN_SDK_VERSION}.app/Contents/MacOS/InstallVulkan-${VULKAN_SDK_VERSION} --root "$sdk_temp" --accept-licenses --default-answer --confirm-command install
   du -hs $sdk_temp
   test -d $sdk_temp/macOS || { echo "unrecognized dmg folder layout: $sdk_temp" ; ls -l $sdk_temp ; exit 10 ; }
   cp -r $sdk_temp/macOS/* $VULKAN_SDK/