Merge branch 'master' into ordered_args

README

@@ -61,6 +61,7 @@ NOTES
               Set $_Z_NO_PROMPT_COMMAND to handle PROMPT_COMMAND/precmd  your-
               self.
               Set $_Z_EXCLUDE_DIRS to an array of directories to exclude.
+              Set $_Z_OWNER to allow usage when in 'sudo -s' mode.
               (These  settings  should  go  in  .bashrc/.zshrc before the line
               added above.)
               Install   the   provided   man   page   z.1    somewhere    like
@@ -123,9 +124,12 @@ ENVIRONMENT
        directories to exclude from tracking. $HOME is always excluded.  Direc-
        tories must be full paths without trailing slashes.
 
+       The  environment  variable  $_Z_OWNER  can  be set to your username, to
+       allow usage of z when your sudo enviroment keeps $HOME set.
+
 FILES
-       Data  is  stored  in  $HOME/.z.  This  can be overridden by setting the
-       $_Z_DATA environment variable. When initialized, z will raise an  error
+       Data is stored in $HOME/.z. This  can  be  overridden  by  setting  the
+       $_Z_DATA  environment variable. When initialized, z will raise an error
        if this path is a directory, and not function correctly.
 
        A man page (z.1) is provided.