This change allows compiling sym_upload.cc and minidump_upload.cc using a global ::string class instead of std::string.  For more details take a look at common/using_std_string.h

A few other fixes:

 - getopt() returns (int)(-1) when options are exhausted.  This was already sent out for code review by mattdr but only for sym_upload.cc (https://breakpad.appspot.com/561002/).  I'm applying the fix for both files.

 - Fixed a couple of lint warning about improper usage of white-spaces.

Thanks,
-Ivan
Review URL: https://breakpad.appspot.com/567002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1158 4c0a9323-5329-0410-9bdc-e9ce6186880e