SF patch #471894: Makefile installs pydoc incorrectly

Add --install-scripts=$(BINDIR) argument to "setup.py install"
invocation.
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 26707e7..b9bbeb5 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -731,6 +731,7 @@
 # This goes into $(exec_prefix)
 sharedinstall:
 	./$(PYTHON) -E $(srcdir)/setup.py install \
+		--install-scripts=$(BINDIR) \
 		--install-platlib=$(DESTSHARED)
 
 # Install a MacOSX framework During build (before