storyboard.c: tuned the output file name.

examples/.gitignore: ignore storyboard.

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@3347 92316355-f0b4-4df1-b90c-862c8a59935f

examples/.gitignore

@@ -6,4 +6,5 @@ histogram
 img2rubik
 line
 sharpen
+storyboard
 *.exe

examples/storyboard.c

@@ -50,12 +50,12 @@ int main(int argc, char *argv[])
     if(argc < 2)
         return EXIT_FAILURE;
 
-    strcpy(fmtstr, argv[1]);
+    parser = strrchr(argv[1], '/');
+    strcpy(fmtstr, parser ? parser : argv[1]);
     parser = strrchr(fmtstr, '.');
     if(parser)
-        strcpy(parser, "%03i.jpeg");
-    else
-        strcat(fmtstr, "%03i.jpeg");
+        *parser = '\0';
+    strcat(fmtstr, ".%03i.jpeg");
 
     image = pipi_new(TWIDTH * TCOLS, THEIGHT * TROWS);
     p = pipi_get_pixels(image, PIPI_PIXELS_RGBA_U8);