r20403 - gnucash/trunk/src - Bug #644556: Running the test as root happened to remove /dev/null. Check for this and also fix the respective test.

[Christian Stimming]

Author: cstim
Date: 2011-03-12 10:47:15 -0500 (Sat, 12 Mar 2011)
New Revision: 20403
Trac: http://svn.gnucash.org/trac/changeset/20403

Modified:
   gnucash/trunk/src/backend/xml/gnc-backend-xml.c
   gnucash/trunk/src/libqof/qof/qoflog.c
   gnucash/trunk/src/libqof/qof/test/test-qof.c
Log:
Bug #644556: Running the test as root happened to remove /dev/null. Check for this and also fix the respective test.

Additionally, it turned out the log system never gave notice about
a log output file that was unwritable. Added an appropriate CRITICAL
error message.