extras: tools: Tidy up cmake-enable-ALPN-support-on-macOS-10.14.patch
In b8eb8c6d, this patch was manually touched up to make it apply on a newer version of CMake - the line counts mismatched slightly, but GNU patch 2.7.6 still happily managed to apply it. However patch 2.5.8 in macOS failed to apply the patch due to the mismatched numbers of lines.
This makes the patch apply correctly with the version of patch on macOS too.
This should fix issue #27381 (closed).