Update Vendored Erubis to 2.6.6

vendor/plugins/erubis/examples/pi/example.ec

@@ -0,0 +1,42 @@
+<?c
+#include <stdio.h>
+
+void escape(char *str, FILE *out);
+
+int main(int argc, char *argv[])
+{
+    int i;
+
+?>
+<p>Hello @!{argv[0]}@!</p>
+<table>
+  <tbody>
+    <?c for (i = 1; i < argc; i++) { ?>
+    <tr bgcolor="@{i % 2 == 0 ? "#FFCCCC" : "#CCCCFF"}@">
+      <td>@!{"%d", i}@</td>
+      <td>@{argv[i]}@</td>
+    </tr>
+    <?c } ?>
+  </tbody>
+</table>
+<?c
+
+    return 0; 
+}
+
+void escape(char *str, FILE *out)
+{
+    char *pch;
+    for (pch = str; *pch != '\0'; pch++) {
+        switch (*pch) {
+        case '&':   fputs("&amp;",  out);  break;
+        case '>':   fputs("&gt;",   out);  break;
+        case '<':   fputs("&lt;",   out);  break;
+        case '"':   fputs("&quot;", out);  break;
+        case '\'':  fputs("&#039;", out);  break;
+        default:    fputc(*pch, out);
+        }
+    }
+}
+
+?>