newer version of git show dirty repo all the time

[doutriaux1]

Latest git seems to show repo as dirty if files that are not in .gitignore or in the repo (no git add) are present:

doutriaux1@sofia:[uvcdat]:[master*]:[375]> git --version
git version 1.8.3.2
doutriaux1@sofia:[uvcdat]:[master*]:[375]> git status
# On branch master
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#   Packages/vcs/build/
#   installation/install.py
nothing added to commit but untracked files present (use "git add" to track)