jdk8: fix sprintf patch

This fixes a recent commit via #123708
The patch itself had an additional '%s' in the sprintf which is unsafe
depending on the surrounding memory.

pkgs/development/compilers/openjdk/fix-library-path-jdk8.patch

···
                                                       sizeof(SYS_EXT_DIR) + sizeof("/lib/") + strlen(cpu_arch) + sizeof(DEFAULT_LIBPATH) + 1,
                                                       mtInternal);
 -    sprintf(ld_library_path, "%s%s" SYS_EXT_DIR "/lib/%s:" DEFAULT_LIBPATH, v, v_colon, cpu_arch);
-+    sprintf(ld_library_path, "%s%s", v);
++    sprintf(ld_library_path, "%s", v);
      Arguments::set_library_path(ld_library_path);
      FREE_C_HEAP_ARRAY(char, ld_library_path, mtInternal);
    }