Merge pull request #2681 from mcornella/fix-zsh_reload-plugin

Various fixes on zsh_reload plugin

plugins/zsh_reload/zsh_reload.plugin.zsh

-zsh_cache=$HOME/.zsh_cache
-mkdir -p $zsh_cache
-
 # reload zshrc
 function src()
 {
   autoload -U compinit zrecompile
-  compinit -d $zsh_cache/zcomp-$HOST
-  for f in $HOME/.zshrc $zsh_cache/zcomp-$HOST; do
-    zrecompile -p $f && rm -f $f.zwc.old
+  compinit -d "$ZSH/cache/zcomp-$HOST"
+
+  for f in ~/.zshrc "$ZSH/cache/zcomp-$HOST"; do
+    zrecompile -p $f && command rm -f $f.zwc.old
   done
+
   source ~/.zshrc
 }