Merge pull request #1071 from Unity-Technologies/LW-Cosmetic

Some cosmetic changes + set target to 2.0 for PBR Standard shader

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurface.hlsl

     half4 specGloss;
 
 #ifdef _METALLICSPECGLOSSMAP
-    specGloss = specGloss = SAMPLE_METALLICSPECULAR(uv);
-#ifdef _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
-    specGloss.a = albedoAlpha * _GlossMapScale;
-#else
-    specGloss.a *= _GlossMapScale;
-#endif
-
+    specGloss = SAMPLE_METALLICSPECULAR(uv);
+    #ifdef _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
+        specGloss.a = albedoAlpha * _GlossMapScale;
+    #else
+        specGloss.a *= _GlossMapScale;
+    #endif
-#if _SPECULAR_SETUP
-    specGloss.rgb = _SpecColor.rgb;
-#else
-    specGloss.rgb = _Metallic.rrr;
-#endif
+    #if _SPECULAR_SETUP
+        specGloss.rgb = _SpecColor.rgb;
+    #else
+        specGloss.rgb = _Metallic.rrr;
+    #endif
-#ifdef _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
-    specGloss.a = albedoAlpha * _GlossMapScale;
-#else
-    specGloss.a = _Glossiness;
-#endif
+    #ifdef _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
+        specGloss.a = albedoAlpha * _GlossMapScale;
+    #else
+        specGloss.a = _Glossiness;
+    #endif
 #endif
 
     return specGloss;

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/LightweightPassLit.hlsl

     half4 binormal                  : TEXCOORD5;    // xyz: binormal, w: viewDir.z
 #else
     half3  normal                   : TEXCOORD3;
-    half3 viewDir                   : TEXCOORD6;
+    half3 viewDir                   : TEXCOORD4;
-    half4 fogFactorAndVertexLight   : TEXCOORD7; // x: fogFactor, yzw: vertex light
+    half4 fogFactorAndVertexLight   : TEXCOORD6; // x: fogFactor, yzw: vertex light
-    float4 shadowCoord              : TEXCOORD8;
+    float4 shadowCoord              : TEXCOORD7;
 
     float4 clipPos                  : SV_POSITION;
     UNITY_VERTEX_INPUT_INSTANCE_ID

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandard.shader

             // Required to compile gles 2.0 with standard SRP library
             // All shaders must be compiled with HLSLcc and currently only gles is not using HLSLcc by default
             #pragma prefer_hlslcc gles
-            #pragma target 3.0
+            #pragma target 2.0
 
             // -------------------------------------
             // Material Keywords