Fix incorrect class name in free_objfile documentation
The documentation for the Python free_objfile event registry uses the
wrong class name. This patch fixes it. I'm checking this in as
obvious.
diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index a4ec5bf..bd4818f 100644
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -3715,7 +3715,7 @@
is when the inferior calls @code{dlclose}.
@code{gdb.FreeObjFileEvent} has one attribute:
-@defvar NewObjFileEvent.objfile
+@defvar FreeObjFileEvent.objfile
A reference to the object file (@code{gdb.Objfile}) which will be unloaded.
@xref{Objfiles In Python}, for details of the @code{gdb.Objfile} object.
@end defvar
