autobuild[sn-devel-144]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-144) has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-02-12-2028/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-02-12-2028/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-02-12-2028/samba.stdout
  
The top commit at the time of the failure was:

commit cb920dd8732af30a7f74d5b492ea6ddfc2adfcbd
Author: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
Date:   Fri Feb 9 23:09:41 2018 +1300

    tests/samba-tool user wdigest: fix a flapping test
    
    The output of something like
    
      samba-tool user getpassword $USER --attributes virtualWDigest01
    
    contains an LDIF section with long strings folded on the 77th column.
    
    To unfold this LDIF we were using:
    
       result = re.sub(r"\n\s*", '', out)
    
    which worked fine EXCEPT when a space in the output happened to land
    immediately after the fold and got eaten by the \s*.
    
    Instead we remove just a single space after the line break, because
    that is always what fold_string() in lib/ldb/common/ldb_ldif.c
    inserts, and for this simple replacement we don't need the re module.
    
    Signed-off-by: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Mon Feb 12 05:21:01 CET 2018 on sn-devel-144