doc: Fix image use in PDF build with vpath

Peter Eisentraut <peter@eisentraut.org>

Commit: a407012c07844b5d81012d6960c4b2ec11d6af9c
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2019-08-19T08:30:47Z
Releases: 13.0
doc: Fix image use in PDF build with vpath

In a vpath build, we need to point to the source directory to allow
FOP to find the images.

Files

PathChange+/−
doc/src/sgml/Makefile modified +4 −2