sass/libsass — pull request #749 by mgreter (2014-12-22 10:18:58+00:00)
Title: Fix for source-map issues

https://github.com/sass/libsass/issues/720

This should hopefully fix the regression I have introduced recently.
We should probably be save to remove `_skip_source_map_update` too.
But I want to wait for that until we have some basic tests for source-maps.
Anyway, this commit makes a lot of sense from a logical coding standpoint!