doc txt & -h consistency: add missing options and labels

Fix various issues of SYNOPSIS and -h output syntax where:

 * Options such as --force were missing entirely
 * ...or the short option, such as -f

 * We said "opts" or "options", but could instead enumerate
   the (small) set of supported options

 * Options that were missing entirely (ls-remote's --sort=<key>)

   As we can specify "--sort" multiple times (it's backed by a
   string-list" it should really be "[(--sort=<key>)...]", which is
   what "git for-each-ref" lists it as, but let's leave that issue for
   a subsequent cleanup, and stop at making these consistent. Other
   "ref-filter.h" users share the same issue, e.g. "git-branch.txt".

 * For "verify-tag" and "verify-commit" we were missing the "--raw"
   option.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/upload-pack.c

@@ -8,7 +8,8 @@
 #include "serve.h"
 
 static const char * const upload_pack_usage[] = {
-	N_("git upload-pack [<options>] <dir>"),
+	N_("git-upload-pack [--[no-]strict] [--timeout=<n>] [--stateless-rpc]\n"
+	   "                [--advertise-refs] <directory>"),
 	NULL
 };