Replace seq invocation with 'jot -'. They don't have seq on Mac by default.
Make sure on_asan_mac_host() always returns 1 on non-Darwin systems.

BUG=170629, 174873
TBR=thakis
Review URL: https://codereview.chromium.org/12256005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182201 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed