Search for missing fonts in the current directory (Fixes #40) and display

an error message in case of failure.

doc/toilet.1.in

@@ -56,6 +56,7 @@ or
 .B .tlf
 files stored in the
 .B @datarootdir@/figlet
+directory. Fonts are looked first in the font directory, then in the current
 directory. There is also a special built-in font called
 .I term
 that serves as a fallback if no font is available.

src/figlet.c

@@ -42,7 +42,14 @@ int init_figlet(context_t *cx)
 
     snprintf(path, 2047, "%s/%s", cx->dir, cx->font);
     if(caca_canvas_set_figfont(cx->cv, path))
-        return -1;
+    {
+        snprintf(path, 2047, "./%s", cx->font);
+        if(caca_canvas_set_figfont(cx->cv, path))
+        {
+            fprintf(stderr, "error: could not load font %s\n", cx->font);
+            return -1;
+        }
+    }
 
     cx->feed = feed_figlet;
     cx->flush = flush_figlet;