Use more visible light red for return value

dotfiles/bash/post.bashrc

     ps1G='$(__git_ps1 "(%s)")';
     ps1g="$green$ps1G$normal";
     ps1D='$(__make_ps1d)';
-    ps1d="$red$ps1D$normal";
+    ps1d="$lred$ps1D$normal";
     echo "$svrc$ps1u@$ps1h:$ps1w$ps1g$ps1d\$ ";
 }