[zsh] Remove old header comments and sourcing .zshenv.local from .zshenv; add init_env_fpath()

zshenv

@@ -1,5 +1,3 @@
-# .zshenv
-# vim: ft=zsh
 # Eryn Wells <eryn@erynwells.me>
 
 # Don't read global startup. It messes things up...
@@ -7,7 +5,17 @@ unsetopt GLOBAL_RCS
 
 export SYS=`uname -s | tr A-Z a-z`
 
-fpath=("$HOME/.zsh/func" $fpath)
+init_env_fpath() {
+    local USER_FPATH=( "$HOME/.zsh/func" )
+
+    if [[ "$SYS" == "darwin" ]]; then
+        USER_FPATH=($USER_FPATH "$HOME/.zsh/func/darwin")
+    fi
+
+    fpath=($USER_FPATH $fpath)
+}
+
+init_env_fpath
 
 autoload -Uz do_init_functions
 
@@ -22,7 +30,3 @@ typeset -a zsh_init_env_functions=( \
 )
 
 do_init_functions zsh_init_env_functions
-
-if [[ -e "$HOME/.zshenv.local" ]]; then
-    source "$HOME/.zshenv.local"
-fi