Update licensecheck to version 2.12.4.

Update licensecheck to version 2.12.4.

BUG=none
TEST=none

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=163628

[Paweł Hajdan Jr., 2012-10-05 14:55:05]

Could you please run this through Linux trybot with optional check_licenses step
enabled? "gcl try" refuses to work on my system (says it sent the try job but
it's not true). Thanks!

[Lei Zhang, 2012-10-08 18:40:17]

On 2012/10/05 14:55:05, Paweł Hajdan Jr. wrote:
> Could you please run this through Linux trybot with optional check_licenses
step
> enabled? "gcl try" refuses to work on my system (says it sent the try job but
> it's not true). Thanks!

This is what I get locally:

'native_client/toolchain/pnacl_linux_x86_32/host/lib/clang/3.2/include/unwind.h'
has non-whitelisted license 'GPL (v3.1)'
'native_client/toolchain/pnacl_linux_x86_32/newlib/usr/include/c++/4.6.2/tgmath.h'
has non-whitelisted license 'GPL (v3.1)'
(many more newlib files with the same complaint)
... 
'third_party/hyphen/hyphen.tex' has non-whitelisted license 'UNKNOWN'
'third_party/WebKit/Source/WTF/wtf/MD5.cpp' has non-whitelisted license 'Public
domain BSD (3 clause)'
'third_party/ffmpeg/compat/getopt.c' has non-whitelisted license 'Public domain
LGPL (v2.1 or later)'
'third_party/libevent/evdns.h' has non-whitelisted license 'Public domain BSD (3
clause)'
'third_party/molokocacao/NSBezierPath+MCAdditions.m' has non-whitelisted license
'UNKNOWN'
'third_party/openssl/openssl/crypto/aes/aes_x86core.c' has non-whitelisted
license 'Public domain BSD'
'third_party/openssl/openssl/crypto/aes/aes_core.c' has non-whitelisted license
'Public domain BSD

[Paweł Hajdan Jr., 2012-10-23 17:40:12]

PTAL, now after a local run.

[Lei Zhang, 2012-10-23 18:27:27]

lgtm