Merge pull request #34873 from compnerd/pythony

build: handle spaces in Xcode better (NFC)

Author: compnerd

utils/build-script-impl

@@ -479,8 +479,8 @@ function set_build_options_for_host() {
         watchos-*           | \
         watchsimulator-*)
             swift_cmake_options+=(
-              -DPython2_EXECUTABLE=$(xcrun -f python2.7)
-              -DPython3_EXECUTABLE=$(xcrun -f python3)
+              -DPython2_EXECUTABLE="$(xcrun -f python2.7)"
+              -DPython3_EXECUTABLE="$(xcrun -f python3)"
             )
             case ${host} in
                 macosx-x86_64)