message: build: Remove spaces from variable-printing rules
  This simplifies parsing when using these rules from scripts.
diff: @@ -119,7 +119,7 @@ fi
  for host in $HOSTS; do
  case "$host" in
  *darwin*)
  - OSX_SDK="$(make -C "${PWD}/depends" --no-print-directory HOST="$host" print-OSX_SDK | sed 's@^[^=]\+=[[:space:]]\+@@g')"
  + OSX_SDK="$(make -C "${PWD}/depends" --no-print-directory HOST="$host" print-OSX_SDK | sed 's@^[^=]\+=@@g')"
  if [ -e "$OSX_SDK" ]; then
  echo "Found macOS SDK at '${OSX_SDK}', using..."
  else
  