Standardize on --long-option instead of -long-option

[[forum/refresh_and_setup]] indicates some confusion between --setup
and -setup. Both work, but it's clearer if we stick to one in
documentation and code.

A 2012 commit to [[plugins/theme]] claims that "-setup" is required
and "--setup" won't work, but I cannot find any evidence in ikiwiki's
source code that this has ever been the case.

1 files changed, 1 insertions, 1 deletions

diff --git a/ikiwiki.in b/ikiwiki.in
index e6b64f439..1327d70e1 100755
--- a/ikiwiki.in
+++ b/ikiwiki.in
@@ -8,7 +8,7 @@ use IkiWiki 3.00;
 
 sub usage () {
 	die gettext("usage: ikiwiki [options] source dest"), "\n",
-	    gettext("       ikiwiki --setup configfile"), "\n";
+	    gettext("       ikiwiki --setup my.setup [options]"), "\n";
 }
 
 sub setup (@) {