Merge remote branch 'nschum/fix-argument-type' into master

Signed-off-by: Kevin Cai <kevinc@mozy.com>
fix incorrect chdir while processing gcov data

* while processing the gcov data, the gcov filepath should
  be calculated related to the getcwd(), not the root dir

Signed-off-by: Kevin Cai <kevinc@mozy.com>
Merge pull request #42 from kevincai/master

fix incorrect gcov relative filepath