llvm/test/tools/UpdateTestChecks/update_test_body/empty-stdout.test

# RUN: cp %s %t && not %update_test_body %t 2>&1 | FileCheck %s
# RUN: diff -u %t %s

# CHECK: stdout is empty; forgot -o - ?

.ifdef GEN
#--- a.txt
.long 0
#--- b.txt
.long 1
#--- gen
true
.endif