Added new file code/writing-tests.adoc to set of translated files.

Author: petterreinholdtsen

docs/po4a.cfg

@@ -26,6 +26,7 @@
 [type: AsciiDoc_def] src/code/nml-messages.adoc $lang:src/$lang/code/nml-messages.adoc
 [type: AsciiDoc_def] src/code/rs274.adoc $lang:src/$lang/code/rs274.adoc
 [type: AsciiDoc_def] src/code/style-guide.adoc $lang:src/$lang/code/style-guide.adoc
+[type: AsciiDoc_def] src/code/writing-tests.adoc $lang:src/$lang/code/writing-tests.adoc
 [type: AsciiDoc_def] src/common/emc-history.adoc $lang:src/$lang/common/emc-history.adoc
 [type: AsciiDoc_def] src/common/glossary.adoc $lang:src/$lang/common/glossary.adoc
 [type: AsciiDoc_def] src/common/gpld-copyright.adoc $lang:src/$lang/common/gpld-copyright.adoc