lolcommits enable or disable fail issue

lolcommits fail issue.sh

$lolcommits --disable


dyld: Library not loaded: /usr/local/lib/libjpeg.8.dylib
  Referenced from: /usr/local/bin/mogrify
  Reason: image not found
/Library/Ruby/Gems/1.8/gems/mini_magick-3.5.0/lib/mini_magick.rb:26:in `image_magick_version': private method `split' called for nil:NilClass (NoMethodError)
  from /Library/Ruby/Gems/1.8/gems/mini_magick-3.5.0/lib/mini_magick.rb:34:in `valid_version_installed?'
	from /Library/Ruby/Gems/1.8/gems/lolcommits-0.4.3/lib/lolcommits/configuration.rb:137:in `valid_imagemagick_installed?'
	from /Library/Ruby/Gems/1.8/gems/lolcommits-0.4.3/bin/lolcommits:43:in `die_on_fatal_conditions!'
	from /Library/Ruby/Gems/1.8/gems/lolcommits-0.4.3/bin/lolcommits:287
	from /usr/bin/lolcommits:23:in `load'
	from /usr/bin/lolcommits:23

$brew rm imagemagick
$brew install imagemagick
Error: You must `brew link jpeg' before imagemagick can be installed'`

$brew link jpeg
Linking /usr/local/Cellar/jpeg/8d... Warning: Could not link jpeg. Unlinking...

Error: Could not symlink file: /usr/local/Cellar/jpeg/8d/include/jpeglib.h
Target /usr/local/include/jpeglib.h already exists. You may need to delete it.
To force the link and delete this file, do:
  brew link -f formula_name

To list all files that would be deleted:
  brew link -n formula_name


$brew rm jpeg
Uninstalling /usr/local/Cellar/jpeg/8d...

$brew install jpeg
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/jpeg-8d.mou
Already downloaded: /Library/Caches/Homebrew/jpeg-8d.mountainlion.bottle.tar.gz
==> Pouring jpeg-8d.mountainlion.bottle.tar.gz
Warning: Could not link jpeg. Unlinking...
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
You can try again using `brew link jpeg'
==> Summary
/usr/local/Cellar/jpeg/8d: 18 files, 1.3M

$brew install imagemagick
Error: You must `brew link jpeg' before imagemagick can be installed