Changelog:
- Moved string colorization to lib/color.rb
- Moved constants to lib/const.rb
- Moved sudo checking before docopt checking.
- Changed docopt require to be relative
- Fixed stray tabs
Prior to this change when `@pkg.is_fake?` evaluated to true the code would execute `post_install` with a `nil` `target_dir` variable, causing a nil error on `Dir.chdir(nil)`
- change to check existence of strip to avoid not found errors
- change to use xargs -r option to avoid empty input errors
- change to chack magic number of files to avoid strip wrong-format errors
Usage is like below.
```
$ crew search vi
(i) vim: Vim is a highly configurable text editor built to make creating and changing any kind of text very efficient.
(i) vidstab: Transcode video stabilization plugin.
vifm: Vifm is an ncurses based file manager with vi like keybindings/modes/options/commands/configuration, which also borrows some useful ideas from mutt.
(i) libxvid: The free video codec that is strong in compression and quality.
neovim: Neovim is a refactor, and sometimes redactor, in the tradition of Vim (which itself derives from Stevie).
$ crew search vi extra
(i) vim: Vim is a highly configurable text editor built to make creating and changing any kind of text very efficient.
http://www.vim.org/
version 8.0-1
(i) vidstab: Transcode video stabilization plugin.
http://public.hronopik.de/vid.stab/
version 0.98b
vifm: Vifm is an ncurses based file manager with vi like keybindings/modes/options/commands/configuration, which also borrows some useful ideas from mutt.
https://vifm.info/
version 0.8.2
(i) libxvid: The free video codec that is strong in compression and quality.
https://www.xvid.com/
version 1.3.4
neovim: Neovim is a refactor, and sometimes redactor, in the tradition of Vim (which itself derives from Stevie).
https://neovim.io/
version 0.1.7
$ crew search ^vim$ extra
(i) vim: Vim is a highly configurable text editor built to make creating and changing any kind of text very efficient.
http://www.vim.org/
version 8.0-1
```
`crew search` use to only return a single result if your query string
matched a package name exactly.
`crew search` now supports regex.
chronos@localhost / $ crew search ^lib
Found libpcap, version 1.8.1
Found libjpeg, version 9.1
Found libunwind, version 1.1
Found libxslt, version 1.1.28
Found libffi, version 3.0.13-1
Found libssh2, version 1.4.3
Found libtool, version 2.4.6
Found libpipeline, version 1.4.1
Found libevent, version 2.0.22
Found libxml2, version 2.9.2
Found libgd, version 2.0.33
Found libtiff, version 4.0.7
Found libpng, version 1.6.26
Found libsigsegv, version 2.10
