mg-repro-setup: Correct usage message re host idents

`[host=]' was misleading - it suggests you have to type literally
`host=', or nothing.  But actually `host' here is any host ident.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>

diff --git a/mg-repro-setup b/mg-repro-setup
index 7a122f4cc78597d9e550a1d006f2847d2e332bff..e6cf28aa010d848629ed55b5eb08fdf02ee9e439 100755 (executable)
--- a/mg-repro-setup
+++ b/mg-repro-setup
@@ -26,10 +26,11 @@ usage () { cat <<END
  and runs it until TESTID has completed.
 
  HOSTSPEC is
-   [host=][reuse:]<hostname>       host must be allocated, skip host-install
-   [host=]wipe:<hostname>          host must be allocated, wipe it
-   [host=]alloc:<resource-spec>    \`mg-allocate <resource-spec>', and wipe
+   [<ident>=][reuse:]<hostname>    host must be allocated, skip host-install
+   [<ident>=]wipe:<hostname>       host must be allocated, wipe it
+   [<ident>=]alloc:<resource-spec> \`mg-allocate <resource-spec>', and wipe
    none:                           no hosts (should be only HOSTPSEC)
+   (default <ident> is \`host')
 
  OPTIONs
    -t<duration>         estimated duration (default = 28d)