scripts/headers_install.sh: fix error handling
scripts/headers_install.sh: fix error handling

- headers_install requires at least two arguments

- missed closing quote

Signed-off-by: Javier Barrio <cb621662641fcac30be5a32eae84f75142a13941@gmail.com>
Cc: Michal Marek <0c835876a532a476f30fdb1f6e963bae6c5a1a04@suse.cz>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs