tests/test-dispatch.t

color: add additional changeset.phase label to log.changeset and log.parent

This allows the user to set different colors for each phase, e.g.

[color]
changeset.public = blue
changeset.draft = green
changeset.secret = red

In addition, this doesn't affect current configuration for custom log.changeset
colors, but rather adds the option for users that want to visually see which
changesets are amendable.

test command parsing and dispatch

  $ hg init a
  $ cd a

Redundant options used to crash (issue436):
  $ hg -v log -v
  $ hg -v log -v x

  $ echo a > a
  $ hg ci -Ama
  adding a

Missing arg:

  $ hg cat
  hg cat: invalid arguments
  hg cat [OPTION]... FILE...
  
  output the current or given revision of files
  
  options:
  
   -o --output FORMAT       print output to file with formatted name
   -r --rev REV             print the given revision
      --decode              apply any matching decode filter
   -I --include PATTERN [+] include names matching the given patterns
   -X --exclude PATTERN [+] exclude names matching the given patterns
  
  [+] marked option can be specified multiple times
  
  use "hg help cat" to show the full help text
  [255]

[defaults]

  $ hg cat a
  a
  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > cat = -r null
  > EOF
  $ hg cat a
  a: no such file in rev 000000000000
  [1]

  $ cd "$TESTTMP"

#if no-outer-repo

No repo:

  $ cd $dir
  $ hg cat
  abort: no repository found in '$TESTTMP' (.hg not found)!
  [255]

#endif