doc: Use Git-provided commit date for PDF

Using the date of the build makes it not-reproducible. This should be
avoided. Furthermore the date on the front page should anyway reflect
when the source of the document was created. Not when it was converted
into a PDF.

1 files changed, 1 insertions, 0 deletions

diff --git a/doc/documentation.tex b/doc/documentation.tex
index a6ba82b..6448186 100644
--- a/doc/documentation.tex
+++ b/doc/documentation.tex
@@ -1,6 +1,7 @@
 \documentclass{report}
 \author{xengineering}
 \title{soundbox documentation}
+\date{\input{../date.txt}}
 
 \usepackage{graphicx}
 \graphicspath{ {./diagrams/} }