Fix warning on release builds: "‘hex_buffer[0]’ may be used uninitialized in this function" The warning is false as hex_buffer[0] is only read in case kFirstDigit and we transition to kFirstDigit only after writing to hex_buffer[0] (but gcc can't prove that).
Fix warning on release builds:
"‘hex_buffer[0]’ may be used uninitialized in this function"
The warning is false as hex_buffer[0] is only read in
case kFirstDigit and we transition to kFirstDigit only after writing
to hex_buffer[0] (but gcc can't prove that).

webscale-networks/mod_pagespeed,webhost/mod_pagespeed,VersoBit/mod_pagespeed,patricmutwiri/mod_pagespeed,wanrui/mod_pagespeed,webscale-networks/mod_pagespeed,webhost/mod_pagespeed,wanrui/mod_pagespeed,wanrui/mod_pagespeed,patricmutwiri/mod_pagespeed,patricmutwiri/mod_pagespeed,wanrui/mod_pagespeed,wanrui/mod_pagespeed,webscale-networks/mod_pagespeed,pagespeed/mod_pagespeed,pagespeed/mod_pagespeed,jalonsoa/mod_pagespeed,webhost/mod_pagespeed,webhost/mod_pagespeed,hashashin/src,jalonsoa/mod_pagespeed,webscale-networks/mod_pagespeed,patricmutwiri/mod_pagespeed,jalonsoa/mod_pagespeed,ajayanandgit/mod_pagespeed,jalonsoa/mod_pagespeed,ajayanandgit/mod_pagespeed,hashashin/src,VersoBit/mod_pagespeed,VersoBit/mod_pagespeed,ajayanandgit/mod_pagespeed,ajayanandgit/mod_pagespeed,jalonsoa/mod_pagespeed,hashashin/src,patricmutwiri/mod_pagespeed,wanrui/mod_pagespeed,webhost/mod_pagespeed,pagespeed/mod_pagespeed,VersoBit/mod_pagespeed,hashashin/src,webhost/mod_pagespeed,pagespeed/mod_pagespeed,wanrui/mod_pagespeed,jalonsoa/mod_pagespeed,webscale-networks/mod_pagespeed,webhost/mod_pagespeed,patricmutwiri/mod_pagespeed,hashashin/src,hashashin/src,ajayanandgit/mod_pagespeed,pagespeed/mod_pagespeed,webscale-networks/mod_pagespeed,webscale-networks/mod_pagespeed,VersoBit/mod_pagespeed,webhost/mod_pagespeed,hashashin/src,hashashin/src,patricmutwiri/mod_pagespeed,patricmutwiri/mod_pagespeed,ajayanandgit/mod_pagespeed,jalonsoa/mod_pagespeed,ajayanandgit/mod_pagespeed,wanrui/mod_pagespeed,VersoBit/mod_pagespeed,jalonsoa/mod_pagespeed,webscale-networks/mod_pagespeed,VersoBit/mod_pagespeed,pagespeed/mod_pagespeed,ajayanandgit/mod_pagespeed,pagespeed/mod_pagespeed