doxyfile BUGFIX older doxygen skips spaces when not in quotes
diff --git a/Doxyfile.in b/Doxyfile.in
index 9c84905..6ac2071 100644
--- a/Doxyfile.in
+++ b/Doxyfile.in
@@ -44,7 +44,7 @@
# for a project that appears at the top of each page and should give viewer a
# quick idea about the purpose of the project. Keep the description short.
-PROJECT_BRIEF = @PROJECT_DESCRIPTION@
+PROJECT_BRIEF = "@PROJECT_DESCRIPTION@"
# With the PROJECT_LOGO tag one can specify a logo or an icon that is included
# in the documentation. The maximum height of the logo should not exceed 55