[gtk-doc] scan: fix import

[Stefan Sauer <stefkost src gnome org>]

commit ded114206ea81a4d847343adaab69233563b49a1
Author: Stefan Sauer <ensonic users sf net>
Date:   Mon Apr 10 17:50:12 2017 +0200

    scan: fix import
    
    Import from '.' and remove the import path modification.

 gtkdoc/scan.py |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gtkdoc/scan.py b/gtkdoc/scan.py
index f723a1a..aaba23e 100644
--- a/gtkdoc/scan.py
+++ b/gtkdoc/scan.py
@@ -37,9 +37,8 @@ import logging
 import os
 import re
 import sys
-sys.path.append('@PYTHON_PACKAGE_DIR@')
 
-from gtkdoc import common
+from . import common
 
 # do not read files twice; checking it here permits to give both srcdir and
 # builddir as --source-dir without fear of duplicities