small cleanup for building picobsd-head without CLANG.

Note that svn 257268 gnu/usr.bin/binutils/ld/Makefile
seems to break the "toolchain" target when building HEAD
on RELENG_9, so until this is solved you may want to

    svn update -r 257267 gnu/usr.bin/binutils/ld/Makefile

before building picobsd
Somehow fix LINT-NOIP.
OpenBSD 5.4 added.