Update pbr.fs

examples/shaders/resources/shaders/glsl100/pbr.fs

@@ -1,6 +1,6 @@
 #version 100
 
-precision highp  float;
+precision highp float;
 
 #define MAX_LIGHTS              4
 #define LIGHT_DIRECTIONAL       0
@@ -153,4 +153,4 @@ void main()
 
         gl_FragColor = vec4(color,1.0);
         
-}
+}