[Varnish] #1496: vsl_mask is annoying to use from varnishadm commandline

[Varnish]

#1496: vsl_mask is annoying to use from varnishadm commandline
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 Reporter:  dormando    |       Owner:
     Type:  defect      |      Status:  new
 Priority:  normal      |   Milestone:
Component:  varnishadm  |     Version:  unknown
 Severity:  normal      |  Resolution:
 Keywords:              |
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Comment (by martin):

 Problem stems from the -Tag argument to param.set being interpreted as a
 command line argument by getopt(). This can be worked around by using '--'
 to end argument parsing before the 'param.set'. E.g.:

 {{{ $ varnishadm -T :6082 -- param.set vsl_mask -WorkThread }}}

 During the discussion in bugwash today it was decided to change varnishadm
 so that no options after the first non-argument is considered.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1496#comment:1>
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