Fix weird water glow on edge of land due to broken alpha value

indra/newview/app_settings/shaders/class1/deferred/waterF.glsl

@@ -197,7 +197,7 @@ void main()
 
 	vec3 screenspacewavef = normalize((norm_mat*vec4(wavef, 1.0)).xyz);
 	
-	frag_data[0] = vec4(color.rgb, color); // diffuse
+	frag_data[0] = vec4(color.rgb, color.a); // diffuse
 	frag_data[1] = vec4(0);		// speccolor, spec
 	frag_data[2] = vec4(encode_normal(screenspacewavef.xyz*0.5+0.5), 0.05, 0);// normalxy, 0, 0
 }