replace 'brick' with correct program name in printfs
diff --git a/progs/glsl/mandelbrot.c b/progs/glsl/mandelbrot.c
index 7a2bad6..e7b2b04 100644
--- a/progs/glsl/mandelbrot.c
+++ b/progs/glsl/mandelbrot.c
@@ -172,7 +172,7 @@
       GLchar log[1000];
       GLsizei len;
       glGetShaderInfoLog_func(shader, 1000, &len, log);
-      fprintf(stderr, "brick: problem compiling shader: %s\n", log);
+      fprintf(stderr, "mandelbrot: problem compiling shader: %s\n", log);
       exit(1);
    }
    else {
@@ -192,12 +192,12 @@
    char *buffer = (char*) malloc(max);
    FILE *f = fopen(filename, "r");
    if (!f) {
-      fprintf(stderr, "brick: Unable to open shader file %s\n", filename);
+      fprintf(stderr, "mandelbrot: Unable to open shader file %s\n", filename);
       exit(1);
    }
 
    n = fread(buffer, 1, max, f);
-   printf("brick: read %d bytes from shader file %s\n", n, filename);
+   printf("mandelbrot: read %d bytes from shader file %s\n", n, filename);
    if (n > 0) {
       buffer[n] = 0;
       LoadAndCompileShader(shader, buffer);