[ "$?" -ne 0 ] && PKG_ERROR=1
- if echo $pkg | grep '[^a-z0-9.+-]'; then
-+ if echo $pkg | grep '[^a-zA-Z0-9.+-]'; then
++ if echo $pkg | grep '[^a-zA-Z0-9_.+-]'; then
echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
PKG_ERROR=1;
fi