use new config.guess output for system specific expected files ..

diff --git a/src/test/regress/expected/int2-FreeBSD.out b/src/test/regress/expected/int2-i386-freebsd.out
similarity index 100%
rename from src/test/regress/expected/int2-FreeBSD.out
rename to src/test/regress/expected/int2-i386-freebsd.out

diff --git a/src/test/regress/expected/int4-FreeBSD.out b/src/test/regress/expected/int4-i386-freebsd.out
similarity index 100%
rename from src/test/regress/expected/int4-FreeBSD.out
rename to src/test/regress/expected/int4-i386-freebsd.out