docs: add optional option back to struct option

The line was accidentally removed in the reference commit where only the
short option had to go.  Rest of the change is indentation.

Reference: 326c5c93b917a623f346155c8b3438b379d9fd60
Signed-off-by: Sami Kerola <kerolasa@iki.fi>

diff --git a/Documentation/boilerplate.c b/Documentation/boilerplate.c
index 68ffbf7ea3b92fd23a049def711586fb0c883368..a92f7f097bb3c97eb35cb25d841becb6e031350e 100644 (file)
--- a/Documentation/boilerplate.c
+++ b/Documentation/boilerplate.c
@@ -69,14 +69,15 @@ int main(int argc, char **argv)
                OPT_OPTIONAL    /* see howto-man-page.txt about short option */
        };
        static const struct option longopts[] = {
-               { "no-argument",                no_argument,       NULL, 'n'       },
-               { "required",                   required_argument, NULL, 'r'       },
-               { "extremely-long-long-option", no_argument,       NULL, 'e'       },
-               { "xyzzy",                      no_argument,       NULL, OPT_XYZZY },
-               { "long-explanation",           no_argument,       NULL, 'l'       },
-               { "foobar",                     no_argument,       NULL, 'f'       },
-               { "version",                    no_argument,       NULL, 'V'       },
-               { "help",                       no_argument,       NULL, 'h'       },
+               { "no-argument",                no_argument,       NULL, 'n'          },
+               { "optional",                   optional_argument, NULL, OPT_OPTIONAL },
+               { "required",                   required_argument, NULL, 'r'          },
+               { "extremely-long-long-option", no_argument,       NULL, 'e'          },
+               { "xyzzy",                      no_argument,       NULL, OPT_XYZZY    },
+               { "long-explanation",           no_argument,       NULL, 'l'          },
+               { "foobar",                     no_argument,       NULL, 'f'          },
+               { "version",                    no_argument,       NULL, 'V'          },
+               { "help",                       no_argument,       NULL, 'h'          },
                { NULL, 0, NULL, 0 }
        };