configure: Avoid printing '.' at the end of error message.

Since we're emitting the user's input back, let's leave it pristine
and not confuse the issue by adding a final period.

diff --git a/configure b/configure
index 65a533f1e74f84e3ff314b5ca15593a07cbc334d..a2998411dfe01611ac1ee14685146efe174e572f 100755 (executable)
--- a/configure
+++ b/configure
@@ -103,7 +103,7 @@ for option; do
        build_vendor=${build_option%%-*}
        build_os=${build_option#*-}
     else
-       echo "Unrecognized option: ${option}."
+       echo "Unrecognized option: ${option}"
        echo "See:"
        echo "  $0 --help"
        echo ""