<?xml version="1.0"?>
<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">

<OpenGLAPI>

<category name="GL_ARB_seamless_cubemap" number="65">
    <enum name="TEXTURE_CUBE_MAP_SEAMLESS"     count="1"  value="0x88F4">
        <size name="Get" mode="get"/>
    </enum>
</category>

</OpenGLAPI>

<?xml version="1.0"?>
<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">

<OpenGLAPI>

<category name="GL_ARB_seamless_cube_map" number="65">
    <enum name="TEXTURE_CUBE_MAP_SEAMLESS"     count="1"  value="0x88F4">
        <size name="Get" mode="get"/>
    </enum>
</category>

</OpenGLAPI>

Add missing _ in extension category name
Add missing _ in extension category name
