Fix missing sentinel in shader file to avoid spurious complaints for hg policy hooks.

indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl

+/** 
+ * @file class1\windlight\atmosphericsFuncs.glsl
+ *
+ * $LicenseInfo:firstyear=2005&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2019, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
 uniform vec4 gamma;
 uniform vec4 lightnorm;
 uniform vec4 sunlight_color;
@@ -113,4 +137,4 @@ void calcAtmosphericVars(vec3 inPositionEye, float ambFactor, out vec3 sunlit, o
     amblit = tmpAmbient.rgb * .25;
     additive  = normalize(additive);
     additive *= vec3(1.0 - exp(-temp2.z * distance_multiplier)) * 0.5;
-}
\ No newline at end of file
+}