ENV: move to new paths. (#507)

Move some stuff formerly in `Library/ENV` around:
- Move `Library/ENV/$XCODE_VERSION` to `Library/Homebrew/env/super` as they are
  all superenv wrappers and all symlinks to the same version. We never needed
  the "separate shims for separate versions" functionality and it just adds
  confusion.
- Move `Library/ENV/pkgconfig` to `Library/Homebrew/env/pkgconfig` to get more
  things under `Library/Homebrew`
- Move `Library/ENV/scm` to `Library/scm` as these wrappers are not actually
  used by or related to superenv (or stdenv) in any way.

1 files changed, 3 insertions, 3 deletions

diff --git a/Library/Homebrew/utils/git.rb b/Library/Homebrew/utils/git.rb
index b4d86eb8a..837cc22e4 100644
--- a/Library/Homebrew/utils/git.rb
+++ b/Library/Homebrew/utils/git.rb
@@ -1,20 +1,20 @@
 module Utils
   def self.git_available?
     return @git if instance_variable_defined?(:@git)
-    @git = quiet_system HOMEBREW_ENV_PATH/"scm/git", "--version"
+    @git = quiet_system HOMEBREW_SHIMS_PATH/"scm/git", "--version"
   end
 
   def self.git_path
     return unless git_available?
     @git_path ||= Utils.popen_read(
-      HOMEBREW_ENV_PATH/"scm/git", "--homebrew=print-path"
+      HOMEBREW_SHIMS_PATH/"scm/git", "--homebrew=print-path"
     ).chuzzle
   end
 
   def self.git_version
     return unless git_available?
     @git_version ||= Utils.popen_read(
-      HOMEBREW_ENV_PATH/"scm/git", "--version"
+      HOMEBREW_SHIMS_PATH/"scm/git", "--version"
     ).chomp[/git version (\d+(?:\.\d+)*)/, 1]
   end