Spacing in config.m4.
Spacing in config.m4.

Signed-off-by: Tyler Anthony Romeo <caa02191bac06813640cbdc07c71de12bdcfde06@gmail.com>

danemacmillan/php-scrypt,PatidarWeb/php-scrypt,PatidarWeb/php-scrypt,PatidarWeb/php-scrypt,danemacmillan/php-scrypt,danemacmillan/php-scrypt