Merge remote-tracking branch 'rbenv/master'

Using `git merge rbenv/master -s recursive -X rename-threshold=5%`.

Conflicts:
	README.md
	bin/python-local-exec
	libexec/pyenv
	libexec/pyenv-help
	test/--version.bats

README.md

@@ -67,7 +67,6 @@ executables injected into your `PATH`, determines which Python version
 has been specified by your application, and passes your commands along
 to the correct Python installation.
 
-
 ### Understanding PATH
 
 When you run a command like `python` or `pip`, your operating system
@@ -83,7 +82,6 @@ precedence over another one at the end. In this example, the
 `/usr/local/bin` directory will be searched first, then `/usr/bin`,
 then `/bin`.
 
-
 ### Understanding Shims
 
 pyenv works by inserting a directory of _shims_ at the front of your
@@ -104,7 +102,6 @@ operating system will do the following:
 * Run the shim named `pip`, which in turn passes the command along to
   pyenv
 
-
 ### Choosing the Python Version
 
 When you execute a shim, pyenv determines which Python version to use by

libexec/pyenv

@@ -36,7 +36,7 @@ resolve_link() {
   }
 
   abs_dirname() {
-  local cwd="$(pwd)"
+    local cwd="$PWD"
     local path="$1"
 
     while [ -n "$path" ]; do
@@ -71,10 +71,10 @@ if [ -z "${PYENV_DIR}" ]; then
 fi
 
 if [ -z "${PYENV_DIR}" ]; then
-  PYENV_DIR="$(pwd)"
+  PYENV_DIR="$PWD"
 else
   cd "$PYENV_DIR" 2>/dev/null || abort "cannot change working directory to \`$PYENV_DIR'"
-  PYENV_DIR="$(pwd)"
+  PYENV_DIR="$PWD"
   cd "$OLDPWD"
 fi
 export PYENV_DIR

libexec/pyenv-which

@@ -23,7 +23,8 @@ remove_from_path() {
     path_before="$result"
     result="${result//:$path_to_remove:/:}"
   done
-  echo "${result%:}"
+  result="${result%:}"
+  echo "${result#:}"
 }
 
 PYENV_COMMAND="$1"

test/which.bats

@@ -59,6 +59,16 @@ create_executable() {
   assert_success "${PYENV_TEST_DIR}/bin/kill-all-humans"
 }
 
+@test "doesn't include current directory in PATH search" {
+  export PATH="$(path_without "kill-all-humans")"
+  mkdir -p "$PYENV_TEST_DIR"
+  cd "$PYENV_TEST_DIR"
+  touch kill-all-humans
+  chmod +x kill-all-humans
+  PYENV_VERSION=system run pyenv-which kill-all-humans
+  assert_failure "pyenv: kill-all-humans: command not found"
+}
+
 @test "version not installed" {
   create_executable "3.4" "py.test"
   PYENV_VERSION=3.3 run pyenv-which py.test