[freeipa PR#3120][opened] [Backport][ipa-4-7] ipa-backup: better error message if ENOSPC

[fcami]

   URL: https://github.com/freeipa/freeipa/pull/3120
Author: fcami
 Title: #3120: [Backport][ipa-4-7] ipa-backup: better error message if ENOSPC
Action: opened

PR body:
"""
MANUAL BACKPORT WITH NO CHANGE

When the destination directory cannot store the complete backup
ipa-backup fails but does not explain why.
This commit adds error-checking to db2ldif(), db2bak() and
finalize_backup() and enhances the error message.

Fixes: https://pagure.io/freeipa/issue/7647
Signed-off-by: François Cami <fcami(a)redhat.com&gt;
Reviewed-By: Florence Blanc-Renaud <flo(a)redhat.com&gt;
Reviewed-By: Tibor Dudlák <tdudlak(a)redhat.com&gt;
Reviewed-By: Christian Heimes <cheimes(a)redhat.com&gt;
Reviewed-By: Thomas Woerner <twoerner(a)redhat.com&gt;
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3120/head:pr3120
git checkout pr3120

[freeipa PR#3120][closed] [Backport][ipa-4-7] ipa-backup: better error message if ENOSPC

[fcami]

   URL: https://github.com/freeipa/freeipa/pull/3120
Author: fcami
 Title: #3120: [Backport][ipa-4-7] ipa-backup: better error message if ENOSPC
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3120/head:pr3120
git checkout pr3120