Blarg, we actually documented --complain as --Complain, which of course

doesn't work. Making the parser match the documentation, though either
form should still work.

(Based on a secondary element of https://bugs.launchpad.net/bugs/341205)

parser/parser_main.c

@@ -88,6 +88,7 @@ struct option long_options[] = {
 	{"version",		0, 0, 'v'},
 	{"preprocess",		0, 0, 'p'},
 	{"complain",		0, 0, 'C'},
+	{"Complain",		0, 0, 'C'},	/* Erk, apparently documented as --Complain */
 	{"dump-variables",	0, 0, 'D'},
 	{"dump-expanded-variables",	0, 0, 'E'},
 	{"Include",		1, 0, 'I'},