foo*sum: Correct syntax error

coreutils/md5_sha1_sum.c:156:3: error: expected '}' before 'else'

Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>