(cppcheck) Fix "error: Memory leak: bufp"

Patch by Aurimas Fišeras.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@21201 57a11ea4-9604-0410-9ed3-97b8803252fd

src/experimental/cgi-bin/fastcgi-hello.c

@@ -46,6 +46,7 @@ int main (int argc, char *argv[])
             fread (bufp, ilen, 1, stdin);
 
             printf ("The POST data is<P>%s\n", bufp);
+            free (bufp);
         }
 
     }