Revert "python-wrapper: fix wrapped argv[0] w/o sed, maybe"

This reverts commit a6dd9bd0cb.

pkgs/development/python-modules/generic/wrap.sh

@@ -26,6 +26,12 @@ wrapPythonProgramsIn() {
             # dont wrap EGG-INFO scripts since they are called from python
             if echo "$i" | grep -v EGG-INFO/scripts; then
                 echo "wrapping \`$i'..."
+                sed -i "$i" -re '1 {
+                    /^#!/!b; :r
+                    /\\$/{N;b r}
+                    /__future__|^ *(#.*)?$/{n;b r}
+                    /^ *[^# ]/i import sys; sys.argv[0] = '"'$(basename "$i")'"'
+                }'
                 wrapProgram "$i" \
                     --prefix PYTHONPATH ":" $program_PYTHONPATH \
                     --prefix PATH ":" $program_PATH