Comment # 9 on bug 915952 from Stephan Kulow

groff has the same problem anyway 

[  544s] /usr/share/doc/packages/groff/examples/grnexmpl.ps differs (PostScript
document text conforming DSC level 3.0)
[  544s] --- old//usr/share/doc/packages/groff/examples/grnexmpl.ps   
2015-02-03 20:20:10.000000000 +0000
[  544s] +++ new//usr/share/doc/packages/groff/examples/grnexmpl.ps   
2015-10-28 01:16:26.000000000 +0000
[  544s] @@ -1,6 +1,6 @@
[  544s]  %!PS-Adobe-3.0
[  544s]  %%Creator: groff version 1.22.2
[  544s] -%%CreationDate: Tue Feb  3 20:19:43 2015
[  544s] +%%CreationDate: Wed Oct 28 01:15:46 2015
[  544s]  %%DocumentNeededResources: font Times-Roman
[  544s]  %%+ font Times-Italic
[  544s]  %%+ font Symbol