added PSF licensing blurbs to relevant files

Lib/xmlcore/etree/ElementInclude.py

@@ -41,6 +41,9 @@
 # OF THIS SOFTWARE.
 # --------------------------------------------------------------------
 
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.
+
 ##
 # Limited XInclude support for the ElementTree package.
 ##

Lib/xmlcore/etree/ElementPath.py

@@ -42,6 +42,9 @@
 # OF THIS SOFTWARE.
 # --------------------------------------------------------------------
 
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.
+
 ##
 # Implementation module for XPath support.  There's usually no reason
 # to import this module directly; the <b>ElementTree</b> does this for

Lib/xmlcore/etree/ElementTree.py

@@ -67,6 +67,9 @@
 # OF THIS SOFTWARE.
 # --------------------------------------------------------------------
 
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.
+
 __all__ = [
     # public symbols
     "Comment",

Lib/xmlcore/etree/__init__.py

@@ -28,3 +28,6 @@
 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 # OF THIS SOFTWARE.
 # --------------------------------------------------------------------
+
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.

PC/_subprocess.c

@@ -32,6 +32,9 @@
  *
  */
 
+/* Licensed to PSF under a Contributor Agreement. */
+/* See http://www.python.org/2.4/license for licensing details. */
+
 /* TODO: handle unicode command lines? */
 /* TODO: handle unicode environment? */