depot_tools: update cpplint.py to r137
depot_tools: update cpplint.py to r137

Implements 'linelength' option in CPPLINT.cfg.
See:
https://code.google.com/p/google-styleguide/source/browse/trunk/cpplint/cpplint.py?r=137

BUG=None
TEST=None

Change-Id: I7b017078d997dfafc524a2f50a32289391d011f9

Review URL: https://codereview.chromium.org/495413002

git-svn-id: fd409f4bdeea2bb50a5d34bb4d4bfc2046a5a3dd@291601 0039d316-1c4b-4281-b951-d872f2087c98

npe9/depot_tools,hsharsha/depot_tools,fanjunwei/depot_tools,G-P-S/depot_tools,ajohnson23/depot_tools,michalliu/chromium-depot_tools,liaorubei/depot_tools,aleonliao/depot_tools,eatbyte/depot_tools,Midrya/chromium,fracting/depot_tools,G-P-S/depot_tools,HackFisher/depot_tools,G-P-S/depot_tools,azunite/chrome_build,azunite/chrome_build,duanwujie/depot_tools,npe9/depot_tools,npe9/depot_tools,fanjunwei/depot_tools,Phonebooth/depot_tools,gcodetogit/depot_tools,fracting/depot_tools,disigma/depot_tools,sarvex/depot-tools,HackFisher/depot_tools,withtone/depot_tools,Midrya/chromium,azureplus/chromium_depot_tools,eatbyte/depot_tools,xuyuhan/depot_tools,duanwujie/depot_tools,HackFisher/depot_tools,Phonebooth/depot_tools,gcodetogit/depot_tools,liaorubei/depot_tools,Phonebooth/depot_tools,Phonebooth/depot_tools,hsharsha/depot_tools,michalliu/chromium-depot_tools,duongbaoduy/gtools,kaiix/depot_tools,mlufei/depot_tools,sarvex/depot-tools,withtone/depot_tools,mlufei/depot_tools,cpanelli/-git-clone-https-chromium.googlesource.com-chromium-tools-depot_tools,michalliu/chromium-depot_tools,airtimemedia/depot_tools,xuyuhan/depot_tools,chinmaygarde/depot_tools,gcodetogit/depot_tools,primiano/depot_tools,SuYiling/chrome_depot_tools,fanjunwei/depot_tools,sarvex/depot-tools,primiano/depot_tools,airtimemedia/depot_tools,cpanelli/-git-clone-https-chromium.googlesource.com-chromium-tools-depot_tools,liaorubei/depot_tools,hsharsha/depot_tools,SuYiling/chrome_depot_tools,liaorubei/depot_tools,CoherentLabs/depot_tools,chinmaygarde/depot_tools,eatbyte/depot_tools,SuYiling/chrome_depot_tools,cpanelli/-git-clone-https-chromium.googlesource.com-chromium-tools-depot_tools,eatbyte/depot_tools,chinmaygarde/depot_tools,fanjunwei/depot_tools,aleonliao/depot_tools,kaiix/depot_tools,ajohnson23/depot_tools,G-P-S/depot_tools,azureplus/chromium_depot_tools,disigma/depot_tools,airtimemedia/depot_tools,duongbaoduy/gtools,primiano/depot_tools,azunite/chrome_build,michalliu/chromium-depot_tools,mlufei/depot_tools,CoherentLabs/depot_tools,fracting/depot_tools,xuyuhan/depot_tools,duanwujie/depot_tools,azureplus/chromium_depot_tools,kaiix/depot_tools,npe9/depot_tools,Midrya/chromium,withtone/depot_tools,disigma/depot_tools,xuyuhan/depot_tools,duongbaoduy/gtools,airtimemedia/depot_tools,aleonliao/depot_tools,sarvex/depot-tools,HackFisher/depot_tools,ajohnson23/depot_tools