[test] Rename beos_bitmap target to beos-bitmap. Same for directfb-bitmap.

test/cairo-test.c

@@ -1822,16 +1822,16 @@ cairo_test_expecting (cairo_test_t *test,
 #if CAIRO_HAS_BEOS_SURFACE
 	    { "beos", CAIRO_SURFACE_TYPE_BEOS, CAIRO_CONTENT_COLOR,
 		create_beos_surface, cairo_surface_write_to_png, cleanup_beos},
-	    { "beos_bitmap", CAIRO_SURFACE_TYPE_BEOS, CAIRO_CONTENT_COLOR,
+	    { "beos-bitmap", CAIRO_SURFACE_TYPE_BEOS, CAIRO_CONTENT_COLOR,
 		create_beos_bitmap_surface, cairo_surface_write_to_png, cleanup_beos_bitmap},
-	    { "beos_bitmap", CAIRO_SURFACE_TYPE_BEOS, CAIRO_CONTENT_COLOR_ALPHA,
+	    { "beos-bitmap", CAIRO_SURFACE_TYPE_BEOS, CAIRO_CONTENT_COLOR_ALPHA,
 		create_beos_bitmap_surface, cairo_surface_write_to_png, cleanup_beos_bitmap},
 #endif
 
 #if CAIRO_HAS_DIRECTFB_SURFACE
 	    { "directfb", CAIRO_SURFACE_TYPE_DIRECTFB, CAIRO_CONTENT_COLOR,
 		create_directfb_surface, cairo_surface_write_to_png, cleanup_directfb},
-	    { "directfb_bitmap", CAIRO_SURFACE_TYPE_DIRECTFB, CAIRO_CONTENT_COLOR_ALPHA,
+	    { "directfb-bitmap", CAIRO_SURFACE_TYPE_DIRECTFB, CAIRO_CONTENT_COLOR_ALPHA,
 		create_directfb_bitmap_surface, cairo_surface_write_to_png,cleanup_directfb},
 #endif
 	};