Place shader "PS" function into its own line and wrap arguments for readability.

Signed-off-by: Kai Blaschke <kai.blaschke@kb-dev.net>

Author: yoyofr

src/libprojectM/MilkdropPreset/MilkdropShader.cpp

@@ -371,11 +371,22 @@ void MilkdropShader::PreprocessPresetShader(std::string& program)
     {
         if (m_type == ShaderType::WarpShader)
         {
-            program.replace(int(found), 11, "void PS(float4 _vDiffuse : COLOR, float4 _uv : TEXCOORD0, float2 _rad_ang : TEXCOORD1, out float4 _return_value : COLOR0, out float4 _mv_tex_coords : COLOR1)\n");
+            program.replace(int(found), 11, R"(
+void PS(float4 _vDiffuse : COLOR,
+        float4 _uv : TEXCOORD0,
+        float2 _rad_ang : TEXCOORD1,
+        out float4 _return_value : COLOR0,
+        out float4 _mv_tex_coords : COLOR1)
+)");
         }
         else
         {
-            program.replace(int(found), 11, "void PS(float4 _vDiffuse : COLOR, float2 _uv : TEXCOORD0, float2 _rad_ang : TEXCOORD1, out float4 _return_value : COLOR)\n");
+            program.replace(int(found), 11, R"(
+void PS(float4 _vDiffuse : COLOR,
+        float2 _uv : TEXCOORD0,
+        float2 _rad_ang : TEXCOORD1,
+        out float4 _return_value : COLOR)
+)");
         }
     }
     else