DRTVWR-592: EXTRA_CODE_HERE is actually important - bring that back

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

@@ -23,6 +23,8 @@
  * $/LicenseInfo$
  */
 
+/*[EXTRA_CODE_HERE]*/
+
 #define TERRAIN_PBR_DETAIL_EMISSIVE 0
 
 #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3

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

@@ -23,6 +23,8 @@
  * $/LicenseInfo$
  */
 
+/*[EXTRA_CODE_HERE]*/
+
 /**
  * Triplanar mapping implementation adapted from Inigo Quilez' example shader,
  * MIT license.