Fix package docstrings, #1612

var/spack/repos/builtin/packages/mxml/package.py

@@ -26,11 +26,9 @@
 
 
 class Mxml(Package):
-    """
-    Mini-XML is a small XML library that you can use to read and write XML
+    """Mini-XML is a small XML library that you can use to read and write XML
     and XML-like data files in your application without requiring large
-    non-standard libraries
-    """
+    non-standard libraries."""
 
     homepage = "http://www.msweet.org"
     url = "http://www.msweet.org/files/project3/mxml-2.9.tar.gz"