Merge pull request #397 from tsuoranta/lod-bias-is-sampler-param

GL_TEXTURE_LOD_BIAS is sampler parameter
diff --git a/xml/gl.xml b/xml/gl.xml
index 1f20e62..3af728d 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -7524,7 +7524,7 @@
         <enum value="0x84FF" name="GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT" alias="GL_MAX_TEXTURE_MAX_ANISOTROPY"/>
         <enum value="0x8500" name="GL_TEXTURE_FILTER_CONTROL"/>
         <enum value="0x8500" name="GL_TEXTURE_FILTER_CONTROL_EXT"/>
-        <enum value="0x8501" name="GL_TEXTURE_LOD_BIAS" group="TextureParameterName"/>
+        <enum value="0x8501" name="GL_TEXTURE_LOD_BIAS" group="TextureParameterName,SamplerParameterF"/>
         <enum value="0x8501" name="GL_TEXTURE_LOD_BIAS_EXT"/>
         <enum value="0x8502" name="GL_MODELVIEW1_STACK_DEPTH_EXT"/>
         <enum value="0x8503" name="GL_COMBINE4_NV"/>