[glib] gio: Remove stray ‘<’ from gschema.dtd

[Philip Withnall <pwithnall src gnome org>]

commit 2ebc78ae710a5db249ebd3fd06884d7e234e1834
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Dec 5 15:34:56 2017 +0100

    gio: Remove stray ‘<’ from gschema.dtd
    
    The mathematical operator was making the DTD unusable.
    Also, min and max can be equal with current parser.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=791267

 gio/gschema.dtd |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gio/gschema.dtd b/gio/gschema.dtd
index efe2d11..8cd552d 100644
--- a/gio/gschema.dtd
+++ b/gio/gschema.dtd
@@ -47,7 +47,8 @@
 
 <!-- range is only allowed for keys with numeric type -->
 <!ELEMENT range EMPTY >
-<!-- min and max must be parseable as values of the key type and min < max -->
+<!-- min and max must be parseable as values of the key type and
+     min must be less than or equal to max -->
 <!ATTLIST range min CDATA #REQUIRED
                 max CDATA #REQUIRED >