{
version(fp); fputc('\n', fp); usage(fp);
fputs("\n\
-Help options:\n\
+Help options\n\
-h, --help Show this help text and exit successfully.\n\
-V, --version Show version number and exit successfully.\n\
\n\
-Diagnostics:\n\
+Diagnostics\n\
-q, --quiet Don't print warning messages.\n\
-v, --verbose Print informational messages (repeatable).\n\
\n\
-Configuration:\n\
+Configuration\n\
-c, --config-file=CONF Read configuration from CONF (repeatable).\n\
-o, --set-option=[SECT:]VAR=VAL Set configuration variable (repeatable).\n\
\n\
-Output:\n\
+Output\n\
-L, --list-sections List all known section names in order.\n\
-M, --machine-readable Don't print headers or labels.\n\
-l, --list-variables=SECTION List all defined variables in SECTION.\n\