-dbackend=eps gives too-small bounding box

[Damian leGassick]

***1***


%{ markup not visible with -dbackend=eps, bounding box too small %}
\version "2.11.22"
\header { tagline = ""}
music = {
        \once \override TextScript #'extra-offset = #'(0 . 6)
        b''!^\markup{"I'M MISSING"}
}
\score { \new Staff \music}                     

***2***

%{  slur is clipped with -dbackend=eps, but not if \slurDashed is commented 
out%}
\version "2.11.22"
\header { tagline = "" }

music = {
        \slurDashed
        aes'( a! b!)                    
}
\score { \new Staff \music}