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, 2 insertions, 2 deletions

diff --git a/ikiwiki-calendar.in b/ikiwiki-calendar.in
index 037ef7df4..74e100be2 100755
--- a/ikiwiki-calendar.in
+++ b/ikiwiki-calendar.in
@@ -62,5 +62,5 @@ foreach my $y ($startyear..$endyear) {
 IkiWiki::rcs_commit_staged(message => gettext("calendar update"))
 	if $config{rcs};
 
-exec("ikiwiki", "-setup", $setup, "-refresh");
-die "failed to run ikiwiki -setup $setup -refresh\n";
+exec("ikiwiki", "--setup", $setup, "--refresh");
+die "failed to run ikiwiki --setup $setup --refresh\n";