Restore 'passx' host option that contains an obfuscated password

[dmach]

Fixes: #1427

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (53968bf) 30.40% compared to head (bacac66) 30.41%.
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1434   +/-   ##
=======================================
  Coverage   30.40%   30.41%           
=======================================
  Files          49       49           
  Lines       17712    17714    +2     
=======================================
+ Hits         5385     5387    +2     
  Misses      12327    12327           

Files	Coverage Δ
osc/conf.py	52.49% <50.00%> (-0.01%)	⬇️

... and 1 file with indirect coverage changes

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