Update Solaris changes to use OSTYPE and zsh datetime module.

lib/completion.zsh

@@ -25,7 +25,7 @@ bindkey -M menuselect '^o' accept-and-infer-next-history
 
 zstyle ':completion:*:*:*:*:*' menu select
 zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#) ([0-9a-z-]#)*=01;34=0=01'
-if [ "$PLAT" = "SunOS" ]
+if [ "$OSTYPE[0,7]" = "solaris" ]
 then
   zstyle ':completion:*:*:*:*:processes' command "ps -u `whoami` -o pid,user,comm"
 else

oh-my-zsh.sh

-PLAT=`uname -s`
 # Check for updates on initial load...
 if [ "$DISABLE_AUTO_UPDATE" != "true" ]; then
   /usr/bin/env ZSH=$ZSH DISABLE_UPDATE_PROMPT=$DISABLE_UPDATE_PROMPT zsh -f $ZSH/tools/check_for_upgrade.sh

plugins/colored-man/colored-man.plugin.zsh

-if [ "${PLAT}" = "SunOS" ]
+if [ "$OSTYPE[0,7]" = "solaris" ]
 then
 	if [ ! -x ${HOME}/bin/nroff ]
 	then

tools/check_for_upgrade.sh

-#!/bin/sh
+#!/usr/bin/env zsh
+
+zmodload zsh/datetime
 
-PLAT=`uname -s`
 function _current_epoch() {
-  if [ "$PLAT" = "SunOS" ]
-  then
-    echo $(($(perl -e 'print time') / 60 / 60 / 24))
-  else
-    echo $(($(date +%s) / 60 / 60 / 24))
-  fi
+  echo $EPOCHSECONDS
 }
 
 function _update_zsh_update() {