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

libexec/pyenv

@@ -28,26 +28,26 @@ if enable -f "${BASH_SOURCE%/*}"/../libexec/pyenv-realpath.dylib realpath 2>/dev
 else
   [ -z "$PYENV_NATIVE_EXT" ] || abort "failed to load \`realpath' builtin"
 
-READLINK=$(type -p greadlink readlink | head -1)
-[ -n "$READLINK" ] || abort "cannot find readlink - are you missing GNU coreutils?"
+  READLINK=$(type -p greadlink readlink | head -1)
+  [ -n "$READLINK" ] || abort "cannot find readlink - are you missing GNU coreutils?"
 
-resolve_link() {
-  $READLINK "$1"
-}
+  resolve_link() {
+    $READLINK "$1"
+  }
 
-abs_dirname() {
-  local cwd="$(pwd)"
-  local path="$1"
+  abs_dirname() {
+    local cwd="$PWD"
+    local path="$1"
 
-  while [ -n "$path" ]; do
-    cd "${path%/*}"
-    local name="${path##*/}"
-    path="$(resolve_link "$name" || true)"
-  done
+    while [ -n "$path" ]; do
+      cd "${path%/*}"
+      local name="${path##*/}"
+      path="$(resolve_link "$name" || true)"
+    done
 
-  pwd
-  cd "$cwd"
-}
+    pwd
+    cd "$cwd"
+  }
 fi
 
 if [ -z "${PYENV_ROOT}" ]; then
@@ -71,10 +71,10 @@ if [ -z "${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"