Doc: Enable break lines in <tag></tag>

doc/sbase/dist/birddoc/latex2e/mapping

@@ -4,6 +4,7 @@
 % The \relax is there to avoid sgml2latex rewriting the class
 <book>		+ "\\relax\\documentclass\[a4paper,10pt,openany\]{book}\n"
 			"\\usepackage\[colorlinks=true,linkcolor=blue,pdftitle={BIRD User's Guide}\]{hyperref}\n"
+			"\\usepackage{enumitem}\n"
 			"\\usepackage{birddoc}\n"
 			"\\usepackage{qwertz}\n"
 			"\\usepackage{url}\n"
@@ -122,7 +123,7 @@
 <list>		+	"\\begin{list}{}{}\n"     +
 </list>		+	"\\end{list}"		+
 
-<descrip>	+	"\\begin{description}"	+
+<descrip>	+	"\\begin{description}\[style=unboxed\]"	+
 </descrip>	+	"\\end{description}"	+
 
 <item>		+	"\\item "