message: increase cat_slower speed and fix unbound variable error
diff: @@ -28,7 +28,7 @@ fi
  function cat_slower() {
  # hacky way to slow down the output of cat
  CI=${CI:-}
  - [ "$CI" == "true" ] && (cat $1 | perl -pe 'select undef,undef,undef,.01') || true
  + [ "$CI" == "true" ] && (cat $1 | perl -pe 'select undef,undef,undef,0.0033333333') || true
  }
  # Disabled by default
  @@ -212,6 +212,8 @@ curl-config --static-libs
  curl-config --prefix
  curl-config --cflags
  +PUBLISH_BINARY=${PUBLISH_BINARY:-}
  +
  if [ -z "$PUBLISH_BINARY" ]; then
  PUBLISH_BINARY=false
  COMMIT_MESSAGE=$(git show -s --format=%B $GIT_COMMIT | tr -d '\n')
  