1.6.1dev: fix libpq version detection in postgres_backend.py (closes …

…#13803)

Patch by BtbN.


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.6-stable@17861 af82e41b-90c4-0310-8c96-b1721e28e2e2

trac/db/postgres_backend.py

@@ -62,7 +62,7 @@
                         '''.encode('utf-8'),
                         _f.read(), re.VERBOSE)
                     if _match:
-                        _libpq_pathname = _match.group(1)
+                        _libpq_pathname = _match.group(1).decode('utf-8')
                 else:
                     if re.search(r'\0libpq\.dll\0'.encode('utf-8'), _f.read(),
                                  re.IGNORECASE):