[gnumeric] Schema: Input attribute is optional for sheet widgets.

[Morten Welinder <mortenw src gnome org>]

commit 995e8c8d030a144059c7a4eed079b2ae64a29c34
Author: Morten Welinder <terra gnome org>
Date:   Fri Feb 27 12:29:22 2015 -0500

    Schema: Input attribute is optional for sheet widgets.

 gnumeric.xsd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnumeric.xsd b/gnumeric.xsd
index e988337..8340123 100644
--- a/gnumeric.xsd
+++ b/gnumeric.xsd
@@ -804,7 +804,7 @@
        <xs:attribute name="Inc"        type="xs:double"        use="required"/>
        <xs:attribute name="Page"       type="xs:double"        use="required"/>
        <xs:attribute name="Value"      type="xs:double"        use="required"/>
-       <xs:attribute name="Input"      type="xs:string"        use="required"/>
+       <xs:attribute name="Input"      type="xs:string"        use="optional"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
     </xs:attributeGroup>