cloudflare_dns: handle exhausted response stream in case of http error (#9818)

* cloudflare_dns: handle exhausted response stream in case of http error

* Update changelogs/fragments/9818-cloudflare-dns-exhausted-response.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

changelogs/fragments/9818-cloudflare-dns-exhausted-response.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - cloudlare_dns - handle exhausted response stream in case of HTTP errors to show nice error message to the user (https://github.com/ansible-collections/community.general/issues/9782, https://github.com/ansible-collections/community.general/pull/9818).

plugins/modules/cloudflare_dns.py

@@ -551,6 +551,9 @@ class CloudflareAPI(object):
         try:
             content = resp.read()
         except AttributeError:
+            content = None
+
+        if not content:
             if info['body']:
                 content = info['body']
             else: