MINOR: sample: add ARGC_OPT
Add ARGC_OPT enum to provide more context for upcoming sample parse errors
involving proxy "option" config directives.
diff --git a/src/sample.c b/src/sample.c
index 953e463..2e04c74 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -1310,6 +1310,7 @@
case ARGC_USRV: where = "in use-server or balance expression in"; break;
case ARGC_HERR: where = "in http-error directive in"; break;
case ARGC_OT: where = "in ot-scope directive in"; break;
+ case ARGC_OPT: where = "in option directive in"; break;
case ARGC_TCO: where = "in tcp-request connection expression in"; break;
case ARGC_TSE: where = "in tcp-request session expression in"; break;
case ARGC_TRQ: where = "in tcp-request content expression in"; break;