(gh-13) Fail for curl 404

By default, curl captures as the -o file whatever the server response is
for <500 responses (excepting -L redirects), which means that a 404 file
not found error doesn't bubble up from the task until we later try to do
something with the file, like asking rpm or dpkg to install the server's
html 404 response text...

Adding --fail-with-body still captures the response but returns non-zero
and let's us halt at the download() where we want.

Author: jpartlow

files/common.sh

@@ -143,7 +143,7 @@ download() {
   if exists 'wget'; then
     exec_and_capture wget -O "${_file}" "${_url}"
   elif exists 'curl'; then
-    exec_and_capture curl -sSL -o "${_file}" "${_url}"
+    exec_and_capture curl --fail-with-body -sSL -o "${_file}" "${_url}"
   else
     fail "Unable to download ${_url}. Neither wget nor curl are installed."
   fi