Github "social coding" logo:

source: http://github-media-downloads.s3.amazonaws.com/GitHub_Logos.zip
Some scour and manual cleanups.
Rescaled to a 10k viewBox in Illustrator.
Move viewBox to 0,0 in Chrome:

var d = document
  , s = d.documentElement
  , v = s.viewBox.baseVal
  , p = [].slice.call(d.querySelectorAll('path'))
  ;
// given all-relative paths (as from a Scour run, say):
function m(p) { p = p.pathSegList.getItem(0); p.x -= v.x; p.y -= v.y; }
p.map(m);
v.x = v.y = 0;
copy((new XMLSerializer).serializeToString(s));
Truncate to integer coords in Chrome:

var d = document
  , s = d.documentElement
  , v = s.viewBox.baseVal
  , P = 0 // number of coordinate decimals sought
  , p = [].slice.call(d.querySelectorAll('path'))
  ;
function t(p) {
  for (var l = p.pathSegList, i = 0, s, v; i < l.numberOfItems; i++) {
    s = l.getItem(i);
    ['x', 'y', 'x1', 'y1', 'x2', 'y2'].map(function(n) {
      if ((v = s[n]) != null) s[n] = v.toFixed(P);
    });
  }
}
['x', 'y', 'width', 'height'].forEach(function(n) {
  v[n] = v[n].toFixed(P);
});
p.map(t);
copy((new XMLSerializer).serializeToString(s));
Removed final closePath:s implicit for fills:

http://www.w3.org/TR/SVG/painting.html#FillProperties
Collapse the circle over i.
Collapse path whitespace with Scour.
Removed structural tags, bringing it down to 3909 bytes
Merge pull request #32 from johan/github-social-coding

Github social coding: 3909 bytes