[build] changed checkstyle linelength to 120
[build] changed checkstyle linelength to 120

jaemyoun/YCSB,ChristianNavolskyi/YCSB,ChristianNavolskyi/YCSB,ChristianNavolskyi/YCSB,zyguan/ycsb,zyguan/ycsb,manolama/YCSB,manolama/YCSB,madhurihn/YCSB_ToyDB,zyguan/ycsb,jaemyoun/YCSB,cricket007/YCSB,brianfrankcooper/YCSB,jaemyoun/YCSB,leschekhomann/YCSB,cricket007/YCSB,madhurihn/YCSB_ToyDB,jaemyoun/YCSB,manolama/YCSB,brianfrankcooper/YCSB,cricket007/YCSB,madhurihn/YCSB_ToyDB,leschekhomann/YCSB,leschekhomann/YCSB,brianfrankcooper/YCSB,brianfrankcooper/YCSB,ChristianNavolskyi/YCSB,cricket007/YCSB,madhurihn/YCSB_ToyDB,zyguan/ycsb,manolama/YCSB,leschekhomann/YCSB