Log Message:
Ride previous version bump.

My previous commit is wrong.
From share/mk/bsd.README of NetBSD src/:

NOGCCERROR      If defined, prevents passing certain ${CFLAGS} to GCC
                that cause warnings to be fatal, such as:
                        -Werror -Wa,--fatal-warnings
                (The latter being for as(1).)

In !defined(NOGCCERROR) case, -Werror should be passed to CFLAGS.
This change may break many packages.