Review some formatting for consistency

src/raylib.h

@@ -876,7 +876,7 @@ RLAPI void ImageColorBrightness(Image *image, int brightness);
 // Image generation functions
 RLAPI Image GenImageGradientV(int width, int height, Color top, Color bottom);                           // Generate image: vertical gradient
 RLAPI Image GenImageGradientH(int width, int height, Color left, Color right);                           // Generate image: horizontal gradient
-RLAPI Image GenImageRadialGradient(int width, int height, float density, Color inner, Color outer);      // Generate image: radial gradient
+RLAPI Image GenImageGradientRadial(int width, int height, float density, Color inner, Color outer);      // Generate image: radial gradient
 RLAPI Image GenImageChecked(int width, int height, int checksX, int checksY, Color col1, Color col2);    // Generate image: checked
 RLAPI Image GenImageWhiteNoise(int width, int height, float factor);                                     // Generate image: white noise
 RLAPI Image GenImagePerlinNoise(int width, int height, float scale);                                     // Generate image: perlin noise