[Hackage] #452: Improve --help. Add info about installing specific versions and the use of predicates

[Hackage]

#452: Improve --help. Add info about installing specific versions and the use of
predicates
----------------------------+-----------------------------------------------
  Reporter:  guest          |        Owner:                     
      Type:  enhancement    |       Status:  closed             
  Priority:  normal         |    Milestone:  cabal-install-0.6  
 Component:  Cabal library  |      Version:  1.2.3.0            
  Severity:  normal         |   Resolution:  fixed              
  Keywords:                 |   Difficulty:  very easy (<1 hour)
Ghcversion:  6.8.3          |     Platform:                     
----------------------------+-----------------------------------------------
Changes (by duncan):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 Now `cabal install --help` displays this at the end:

 {{{
 Examples:
   cabal install                     Package in the current directory
   cabal install foo                 Package from the hackage server
   cabal install foo-1.0             Specific version of a package
   cabal install 'foo < 2'           Constrained package version
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/452#comment:3>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects