[OSSTEST PATCH 7/8] standalone-generate-dump-flight-runvars: Simulate cri-getplatforms

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Set MF_SIMULATE_PLATFORMS to a suitable value if it is
not *set*.  (Distinguishing unset from set to empty.)

I have verified that this, plus the preceding commits to
cri-getplatforms, produces no change in the output of
  MF_SIMULATE_PLATFORMS='' OSSTEST_CONFIG=standalone-config-example eatmydata 
./standalone-generate-dump-flight-runvars

Without the MF_SIMULATE_PLATFORMS setting it adds several new jobs to
each flight, name things like this:
  test-amd64-$arch1-xl-simplat-$arch2-$suite

The purpose of this right now is to provide a way to dry-run test the
next change.

Signed-off-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
---
 standalone-generate-dump-flight-runvars | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/standalone-generate-dump-flight-runvars 
b/standalone-generate-dump-flight-runvars
index 5c93b0af..07b9c126 100755
--- a/standalone-generate-dump-flight-runvars
+++ b/standalone-generate-dump-flight-runvars
@@ -45,6 +45,9 @@ fi
 : ${AP_FETCH_PLACEHOLDERS:=y}
 export AP_FETCH_PLACEHOLDERS
 
+: ${MF_SIMULATE_PLATFORMS='simplat-$xenarch-$suite'}
+export MF_SIMULATE_PLATFORMS
+
 export OSSTEST_HOSTSLIST_DUMMY=1
 
 if [ "x$AP_FETCH_PLACEHOLDERS" != xy ]; then
-- 
2.20.1