Updates to reformat script.
Updates to reformat script.

Don't change files if they're unmodified.

Indicate which files have changed and a summary.
Reviewed-by: Rich Salz <c04971a99e5a9ee80eaab4b1deb37e845b0bd697@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl