CMake: Prepend space to VCPKG_{C,CXX}_FLAGS in icu port overlay

When updating these variables, the appender is responsible for the
preceeding space. Otherwise, flags get jammed together.
This commit is contained in:
Andrew Kaster 2025-06-22 12:42:46 -06:00 committed by Andrew Kaster
commit b4cc34d0ae
Notes: github-actions[bot] 2025-06-22 19:34:47 +00:00