fix tools/bazel stdout

tools/bazel

@@ -33,8 +33,7 @@ then
 fi
 
 VERSION=1.0.0
-
+echo "INFO: Running bazel wrapper (see //tools/bazel for details), bazel version $VERSION will be used instead of system-wide bazel installation." >&2
-echo "INFO: Running bazel wrapper (see //tools/bazel for details), bazel version $VERSION will be used instead of system-wide bazel installation."
 
 BASEURL=https://github.com/bazelbuild/bazel/releases/download/
 pushd "$(dirname "$0")" >/dev/null
@@ -48,7 +47,7 @@ case $(uname -sm) in
     suffix=darwin-x86_64
     ;;
   *)
-    echo "Unsupported architecture: $(uname -sm)"
+    echo "Unsupported architecture: $(uname -sm)" >&2
     exit 1
     ;;
 esac