[GHC] #6119: complain when ghc-pkg doesn't find any matching packages in a given database

[GHC]

#6119: complain when ghc-pkg doesn't find any matching packages in a given
database
-------------------------------------+-------------------------------------
        Reporter:  dmwit             |                Owner:  sibi
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  ghc-pkg           |              Version:  7.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #10785            |  Differential Rev(s):
       Wiki Page:                    |  https://phabricator.haskell.org/D1575
-------------------------------------+-------------------------------------
Changes (by sibi):

 * status:  new => patch
 * differential:   => https://phabricator.haskell.org/D1575


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6119#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler