reposinit script update

reposinit

@@ -17,4 +17,4 @@ for path in `find pylibs/ -maxdepth 1 -type d`; do
 	fi
 done
 
-sudo rm /usr/local/bin/ptpython && ln -s `pwd`/venv/bin/ptpython /usr/local/bin
+sudo rm -f /usr/local/bin/ptpython && ln -s `pwd`/venv/bin/ptpython /usr/local/bin