enable NH_DATESUB for all .6 files

diff --git a/doc/.gitattributes b/doc/.gitattributes
index 689ad8bb19fc0fe1bf34dc3be99546f3a4ba21d0..7267b12133178a5e08f306a9eb7daeea63e7f4ea 100644 (file)
--- a/doc/.gitattributes
+++ b/doc/.gitattributes
@@ -12,3 +12,4 @@ fixes* NH_header=no
 * NH_filestag=(file%s_for_all_versions)
 Guidebook.tex  NH_DATESUB
 Guidebook.mn   NH_DATESUB
+*.6    NH_DATESUB